@booklet {4285,
	title = {QUARTINO, B. J. 1961. Acerca de una tanguaita de Iruya (Provincia de Salta) y de las rocas alcalinas del noroeste Argentino. Revista de la Asociacion Geologica Argentina, 15{\quotesinglbase} 145-57.},
	year = {1961},
	note = {QUARTINO, B. J. 1961. Acerca de una tanguaita de Iruya (Provincia de Salta) y de las rocas alcalinas del noroeste Argentino. Revista de la Asociacion Geologica Argentina, 15{\quotesinglbase} 145-57.}
}
@booklet {4656,
	title = {HOGARTH, D.D. 1961. A study of pyrochlore and betafite. Canadian Mineralogist, 6: 610-33.},
	year = {1961},
	note = {HOGARTH, D.D. 1961. A study of pyrochlore and betafite. Canadian Mineralogist, 6: 610-33.}
}
@booklet {4761,
	title = {PARSONS, G.E. 1961. Niobium-bearing complexes east of Lake Superior. Geological Report, Ontario Department of Mines, 3: 1-73.},
	year = {1961},
	note = {PARSONS, G.E. 1961. Niobium-bearing complexes east of Lake Superior. Geological Report, Ontario Department of Mines, 3: 1-73.}
}
@booklet {4765,
	title = {PARSONS, G.E. 1961. Niobium-bearing complexes east of Lake Superior. Geological Report, Ontario Department of Mines, 3: 1-73.},
	year = {1961},
	note = {PARSONS, G.E. 1961. Niobium-bearing complexes east of Lake Superior. Geological Report, Ontario Department of Mines, 3: 1-73.}
}
@booklet {4776,
	title = {PARSONS, G.E. 1961. Niobium-bearing complexes east of Lake Superior. Geological Report, Ontario Department of Mines, 3: 1-73.},
	year = {1961},
	note = {PARSONS, G.E. 1961. Niobium-bearing complexes east of Lake Superior. Geological Report, Ontario Department of Mines, 3: 1-73.}
}
@booklet {4795,
	title = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.},
	year = {1961},
	note = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.}
}
@booklet {4816,
	title = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.},
	year = {1961},
	note = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.}
}
@booklet {4818,
	title = {TILLEY, C.E. and GITTINS, J. 1961. Igneous nepheline-bearing rocks of the Haliburton-Bancroft province of Ontario. Journal of Petrology, 2: 38-48.},
	year = {1961},
	note = {TILLEY, C.E. and GITTINS, J. 1961. Igneous nepheline-bearing rocks of the Haliburton-Bancroft province of Ontario. Journal of Petrology, 2: 38-48.}
}
@booklet {4821,
	title = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.},
	year = {1961},
	note = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.}
}
@booklet {4825,
	title = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.},
	year = {1961},
	note = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.}
}
@booklet {4828,
	title = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.},
	year = {1961},
	note = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.}
}
@booklet {4833,
	title = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.},
	year = {1961},
	note = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.}
}
@booklet {4838,
	title = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.},
	year = {1961},
	note = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.}
}
@booklet {4839,
	title = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.},
	year = {1961},
	note = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.}
}
@booklet {4843,
	title = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.},
	year = {1961},
	note = {HEWITT, D.F. 1961. Nepheline syenite deposits of southern Ontario. Annual Report, Ontario Department of Mines, 69(8): 1-194.}
}
@booklet {5016,
	title = {EVANS, E.L. and DUJARDIN, R.A. 1961. A unique beryllium deposit in the vicinity of Ten Mile Lake, Seal Lake area, Labrador. Proceedings of the Geological Association of Canada, 13: 45-51.},
	year = {1961},
	note = {EVANS, E.L. and DUJARDIN, R.A. 1961. A unique beryllium deposit in the vicinity of Ten Mile Lake, Seal Lake area, Labrador. Proceedings of the Geological Association of Canada, 13: 45-51.}
}
@booklet {5019,
	title = {BRUMMER, J.J. and MANN, E.L. 1961. Geology of the Seal Lake area, Labrador. Bulletin of the Geological Society of America, 72: 1361-81.},
	year = {1961},
	note = {BRUMMER, J.J. and MANN, E.L. 1961. Geology of the Seal Lake area, Labrador. Bulletin of the Geological Society of America, 72: 1361-81.}
}
@booklet {5208,
	title = {PULVERTAFT, T.C.R. 1961. The Puklen intrusion, Nunarssuit, SW Greenland. Meddelelser om Gronland, 123(6): 33-50.},
	year = {1961},
	note = {PULVERTAFT, T.C.R. 1961. The Puklen intrusion, Nunarssuit, SW Greenland. Meddelelser om Gronland, 123(6): 33-50.}
}
@booklet {5468,
	title = {SNAVELY, P.D. and WAGNER, H.C. 1961. Differentiated gabbroic sills and associated alkalic rocks in the central part of the Oregon Coast Range, Oregon. Professional Paper, United States Geological Survey, 424D: 156-61.},
	year = {1961},
	note = {SNAVELY, P.D. and WAGNER, H.C. 1961. Differentiated gabbroic sills and associated alkalic rocks in the central part of the Oregon Coast Range, Oregon. Professional Paper, United States Geological Survey, 424D: 156-61.}
}
@booklet {5475,
	title = {WALKER, G.W. 1961. Soda rhyolite (pantellerite?) from Lake County, Oregon. Professional Paper, United States Geological Survey, 424-C: 142-5},
	year = {1961},
	note = {WALKER, G.W. 1961. Soda rhyolite (pantellerite?) from Lake County, Oregon. Professional Paper, United States Geological Survey, 424-C: 142-5}
}
@booklet {5624,
	title = {JOHNSON, R.B. 1961. Patterns and origin of radial dike swarms associated with West Spanish Peak and Dike Mountain, south-central Colorado. Bulletin of the Geological Society of America, 72: 579-90},
	year = {1961},
	note = {JOHNSON, R.B. 1961. Patterns and origin of radial dike swarms associated with West Spanish Peak and Dike Mountain, south-central Colorado. Bulletin of the Geological Society of America, 72: 579-90}
}
@booklet {6043,
	title = {LYASHKEVICH, Z.M. 1961. Peculiarities of the Turpi alkaline massif. Tadzhik Academy of Sciences, Geology-Chemistry Series, 2: 49-70.},
	year = {1961},
	note = {LYASHKEVICH, Z.M. 1961. Peculiarities of the Turpi alkaline massif. Tadzhik Academy of Sciences, Geology-Chemistry Series, 2: 49-70.}
}
@booklet {6089,
	title = {EL{\textquoteright}YANOV, A.A. and MORALEV, V.M. 1961. New data on the age of the ultramafic and alkaline rocks of the Aldan shield. Doklady Akademii Nauk SSSR, 141: 687-9.},
	year = {1961},
	note = {EL{\textquoteright}YANOV, A.A. and MORALEV, V.M. 1961. New data on the age of the ultramafic and alkaline rocks of the Aldan shield. Doklady Akademii Nauk SSSR, 141: 687-9.}
}
@booklet {6156,
	title = {EGOROV, L.S.,GOLDBURT, T.L., SHIKORINA, K.M., EPSTEIN, E.M., ANIKEEVA, L.I. and MIKHAOLOVA, A.F. 1961. Geology and petrology of magmatic rocks of the Guli intrusion. State Publishing House of Literature for Mining (Gosgortekhisdat), Moscow. 272 pp.},
	year = {1961},
	note = {EGOROV, L.S.,GOLDBURT, T.L., SHIKORINA, K.M., EPSTEIN, E.M., ANIKEEVA, L.I. and MIKHAOLOVA, A.F. 1961. Geology and petrology of magmatic rocks of the Guli intrusion. State Publishing House of Literature for Mining (Gosgortekhisdat), Moscow. 272 pp.}
}
@booklet {6160,
	title = {EGOROV, L.S. and SURINA, N.P. 1961. The carbonatites of the Changit intrusive at the north of the Siberian platform. Trudy Nauchno-Issledovatel{\textquoteright}skogo Instituta Geologii Arktiki, Leningrad, 125: 160-78.},
	year = {1961},
	note = {EGOROV, L.S. and SURINA, N.P. 1961. The carbonatites of the Changit intrusive at the north of the Siberian platform. Trudy Nauchno-Issledovatel{\textquoteright}skogo Instituta Geologii Arktiki, Leningrad, 125: 160-78.}
}
@booklet {6166,
	title = {EGOROV, L.S. and SURINA, N.P. 1961. The carbonatites of the Changit intrusive at the north of the Siberian platform. Trudy Nauchno-Issledovatel{\textquoteright}skogo Instituta Geologii Arktiki, Leningrad, 125: 160-78.},
	year = {1961},
	note = {EGOROV, L.S. and SURINA, N.P. 1961. The carbonatites of the Changit intrusive at the north of the Siberian platform. Trudy Nauchno-Issledovatel{\textquoteright}skogo Instituta Geologii Arktiki, Leningrad, 125: 160-78.}
}
@booklet {6189,
	title = {Sheinman et al., 1961; Vasiliev and Zolotuchin, 1975.},
	year = {1961},
	note = {Sheinman et al., 1961; Vasiliev and Zolotuchin, 1975.}
}
@booklet {6259,
	title = {SHOKHINA, O.I. 1961. Alkaline rocks of the Bulancul{\textquoteright} massif (the Krasnoyarsk Region). Publishing House of the Siberian Branch of the USSR Academy of Sciences, Novosibirsk. 70 pp.},
	year = {1961},
	note = {SHOKHINA, O.I. 1961. Alkaline rocks of the Bulancul{\textquoteright} massif (the Krasnoyarsk Region). Publishing House of the Siberian Branch of the USSR Academy of Sciences, Novosibirsk. 70 pp.}
}
@booklet {6465,
	title = {ZYKOV, S.I., STUPNIKOVA, N.I., PAVLENKO, A.S., TUGARINOV, A.I. and ORLOVA M.P. 1961. The age of the intrusions from East Tuva and the Enisei Range. Geokhimiya. Akademiya Nauk SSSR, Moskva, 7: 547-60.},
	year = {1961},
	note = {ZYKOV, S.I., STUPNIKOVA, N.I., PAVLENKO, A.S., TUGARINOV, A.I. and ORLOVA M.P. 1961. The age of the intrusions from East Tuva and the Enisei Range. Geokhimiya. Akademiya Nauk SSSR, Moskva, 7: 547-60.}
}
@booklet {6475,
	title = {ZYKOV, S.I., STUPNIKOVA, N.I., PAVLENKO, A.S., TUGARINOV, A.I. and ORLOVA M.P. 1961. The age of the intrusions from East Tuva and the Enisei Range. Geokhimiya. Akademiya Nauk SSSR, Moskva, 7: 547-60.},
	year = {1961},
	note = {ZYKOV, S.I., STUPNIKOVA, N.I., PAVLENKO, A.S., TUGARINOV, A.I. and ORLOVA M.P. 1961. The age of the intrusions from East Tuva and the Enisei Range. Geokhimiya. Akademiya Nauk SSSR, Moskva, 7: 547-60.}
}
@booklet {6484,
	title = {ZYKOV, S.I., STUPNIKOVA, N.I., PAVLENKO, A.S., TUGARINOV, A.I. and ORLOVA M.P. 1961. The age of the intrusions from East Tuva and the Enisei Range. Geokhimiya. Akademiya Nauk SSSR, Moskva, 7: 547-60.},
	year = {1961},
	note = {ZYKOV, S.I., STUPNIKOVA, N.I., PAVLENKO, A.S., TUGARINOV, A.I. and ORLOVA M.P. 1961. The age of the intrusions from East Tuva and the Enisei Range. Geokhimiya. Akademiya Nauk SSSR, Moskva, 7: 547-60.}
}
@booklet {6490,
	title = {ZYKOV, S.I., STUPNIKOVA, N.I., PAVLENKO, A.S., TUGARINOV, A.I. and ORLOVA M.P. 1961. The age of the intrusions from East Tuva and the Enisei Range. Geokhimiya. Akademiya Nauk SSSR, Moskva, 7: 547-60.},
	year = {1961},
	note = {ZYKOV, S.I., STUPNIKOVA, N.I., PAVLENKO, A.S., TUGARINOV, A.I. and ORLOVA M.P. 1961. The age of the intrusions from East Tuva and the Enisei Range. Geokhimiya. Akademiya Nauk SSSR, Moskva, 7: 547-60.}
}
@booklet {6498,
	title = {ZYKOV, S.I., STUPNIKOVA, N.I., PAVLENKO, A.S., TUGARINOV, A.I. and ORLOVA M.P. 1961. The age of the intrusions from East Tuva and the Enisei Range. Geokhimiya. Akademiya Nauk SSSR, Moskva, 7: 547-60.},
	year = {1961},
	note = {ZYKOV, S.I., STUPNIKOVA, N.I., PAVLENKO, A.S., TUGARINOV, A.I. and ORLOVA M.P. 1961. The age of the intrusions from East Tuva and the Enisei Range. Geokhimiya. Akademiya Nauk SSSR, Moskva, 7: 547-60.}
}
@booklet {6506,
	title = {ZYKOV, S.I., STUPNIKOVA, N.I., PAVLENKO, A.S., TUGARINOV, A.I. and ORLOVA M.P. 1961. The age of the intrusions from East Tuva and the Enisei Range. Geokhimiya. Akademiya Nauk SSSR, Moskva, 7: 547-60.},
	year = {1961},
	note = {ZYKOV, S.I., STUPNIKOVA, N.I., PAVLENKO, A.S., TUGARINOV, A.I. and ORLOVA M.P. 1961. The age of the intrusions from East Tuva and the Enisei Range. Geokhimiya. Akademiya Nauk SSSR, Moskva, 7: 547-60.}
}
@booklet {6508,
	title = {KONONOVA, V.A. 1961. Urtite-ijolite intrusions from south-east Tuva and some problems of their genesis. USSR Academy of Sciences, Moscow. 120 pp.},
	year = {1961},
	note = {KONONOVA, V.A. 1961. Urtite-ijolite intrusions from south-east Tuva and some problems of their genesis. USSR Academy of Sciences, Moscow. 120 pp.}
}
@booklet {6524,
	title = {KONONOVA, V.A. 1961. Urtite-ijolite intrusions from south-east Tuva and some problems of their genesis. USSR Academy of Sciences, Moscow. 120 pp.},
	year = {1961},
	note = {KONONOVA, V.A. 1961. Urtite-ijolite intrusions from south-east Tuva and some problems of their genesis. USSR Academy of Sciences, Moscow. 120 pp.}
}
@booklet {6781,
	title = {EL{\textquoteright}YANOV, A.A. and MORALEV, V.M. 1961. New data on the age of the ultramafic and alkaline rocks of the Aldan shield. Doklady Akademii Nauk SSSR, 141:{\quotesinglbase} 686-9.},
	year = {1961},
	note = {EL{\textquoteright}YANOV, A.A. and MORALEV, V.M. 1961. New data on the age of the ultramafic and alkaline rocks of the Aldan shield. Doklady Akademii Nauk SSSR, 141:{\quotesinglbase} 686-9.}
}
@booklet {6787,
	title = {SHEINMANN, U.M., APELTSIN, F.R. and NECHAEVA, E.A. 1961. Alkaline intrusions, their distribution and related mineralisation. In A.I. Ginzburg (ed) Geology of the deposits of the rare elements. Gosgeoltekhizdat, Moscow. 177 pp.},
	year = {1961},
	note = {SHEINMANN, U.M., APELTSIN, F.R. and NECHAEVA, E.A. 1961. Alkaline intrusions, their distribution and related mineralisation. In A.I. Ginzburg (ed) Geology of the deposits of the rare elements. Gosgeoltekhizdat, Moscow. 177 pp.}
}
@booklet {7046,
	title = {ARNOULD, M. 1961. Etude geologique des migmatites et des granites Precambriens du nord-est de la Cote d{\textquoteright}Ivoire et de la Haute-Volta Meridionele. Memoires du Bureau de Recherches Geologiques et Minieres, 3: 1-174.},
	year = {1961},
	note = {ARNOULD, M. 1961. {\'E}tude g{\'e}ologique des migmatites et des granites Pr{\'e}cambriens du nord-est de la Cote d{\textquoteright}Ivoire et de la Haute-Volta M{\'e}ridionele. M{\'e}moires du Bureau de Recherches G{\'e}ologiques et Mini{\`e}res, 3: 1-174.}
}
@booklet {7047,
	title = {ARNOULD, M. 1961. Etude geologique des migmatites et des granites Precambriens du nord-est de la Cote d{\textquoteright}Ivoire et de la Haute-Volta Meridionele. Memoires du Bureau de Recherches Geologiques et Minieres, 3: 1-174.BONHOMME, M. 1962. Contribution a l{\textquoteright}etude g},
	year = {1961},
	note = {ARNOULD, M. 1961. {\'E}tude g{\'e}ologique des migmatites et des granites Pr{\'e}cambriens du nord-est de la Cote d{\textquoteright}Ivoire et de la Haute-Volta M{\'e}ridionele. M{\'e}moires du Bureau de Recherches G{\'e}ologiques et Mini{\`e}res, 3: 1-174.BONHOMME, M. 1962. Contribution a l{\textquoteright}{\'e}tude g{\'e}ochronologique de la plate-forme de l{\textquoteright}Ouest Africain. Annales de la Facult{\'e} des Sciences de l{\textquoteright}Universit{\'e} de Clermont, 5 (Fasc. 5): 1-62.MOREL, B. and ALINAT, M. 1993. G{\'e}ologie, p{\'e}trologie et g{\'e}ochimie des sy{\'e}nites de Ninakri: comparaison avec d{\textquoteright}autres massifs sy{\'e}nitiques anorog{\'e}niques de C{\^o}te d{\textquoteright}Ivoire et d{\textquoteright}Afrique de l{\textquoteright}Ouest. Journal of African Earth Sciences, 17: 213-23.YOBOU, R. 1993. P{\'e}trologie des granitoides du Proterozoique Inferieur du centre-nord de la Cote D{\textquoteright}Ivoire (Ferkessedougou-Marabadiassa) {\'e}volution magmatique et contexte geodynamique. PhD thesis, Universit{\'e} de Paris-Sud.}
}
@booklet {7049,
	title = {ARNOULD, M. 1961. Etude geologique des migmatites et des granites Precambriens du nord-est de la Cote d{\textquoteright}Ivoire et de la Haute-Volta Meridionele. Memoires du Bureau de Recherches Geologiques et Minieres, 3: 1-174.},
	year = {1961},
	note = {ARNOULD, M. 1961. {\'E}tude g{\'e}ologique des migmatites et des granites Pr{\'e}cambriens du nord-est de la Cote d{\textquoteright}Ivoire et de la Haute-Volta M{\'e}ridionele. M{\'e}moires du Bureau de Recherches G{\'e}ologiques et Mini{\`e}res, 3: 1-174.}
}
@booklet {7050,
	title = {ARNOULD, M. 1961. Etude geologique des migmatites et des granites Precambriens du nord-est de la Cote d{\textquoteright}Ivoire et de la Haute-Volta Meridionele. Memoires du Bureau de Recherches Geologiques et Minieres, 3: 1-174.},
	year = {1961},
	note = {ARNOULD, M. 1961. {\'E}tude g{\'e}ologique des migmatites et des granites Pr{\'e}cambriens du nord-est de la Cote d{\textquoteright}Ivoire et de la Haute-Volta M{\'e}ridionele. M{\'e}moires du Bureau de Recherches G{\'e}ologiques et Mini{\`e}res, 3: 1-174.}
}
@booklet {7187,
	title = {BLOOMFIELD, K. 1961. The age of the Chilwa Alkaline Province. Records, Geological Survey of Malawi, 1: 95-100.BLOOMFIELD, K. 1965a. The geology of the Zomba area. Bulletin, Geological Survey of Malawi, 16: 1-193.EBY, G.N., RODEN-TICE, M., KRUEGER, H.L., E},
	year = {1961},
	note = {BLOOMFIELD, K. 1961. The age of the Chilwa Alkaline Province. Records, Geological Survey of Malawi, 1: 95-100.BLOOMFIELD, K. 1965a. The geology of the Zomba area. Bulletin, Geological Survey of Malawi, 16: 1-193.EBY, G.N., RODEN-TICE, M., KRUEGER, H.L., EWING, W., FAXON, E.H. and WOOLLEY, A.R. 1995. Geochronology and cooling history of the northern part of the Chilwa Alkaline Province, Malawi. Journal of African Earth Sciences, 20: 275-88.GARSON, M.S. 1960. The geology of the Lake Chilwa area. Bulletin, Geological Survey of Nyasaland, 12: 1-67.STILLMAN, C.J. and COX, K.G. 1960. The Chikala Hill syenite-complex of southern Nyasaland. Transactions and Proceedings of the Geological Society of South Africa, 63: 99-117.VAIL, J.R. and MALLICK, D.I.J. 1965. The Mongolowe Hills nepheline-syenite ring-complex, southern Malawi. Records, Geological Survey of Malawi, 3: 49-60.VAIL, J.R. and MONKMAN, L.J. 1960. A geological reconnaissance survey of the Chaone Hill ring complex, southern Nyasaland. Transactions and Proceedings of the Geological Society of South Africa, 63: 119-35.WOOLLEY, A.R. and PLATT, R.G. 1986. The mineralogy of nepheline syenite complexes from the northern part of the Chilwa province, Malawi. Mineralogical Magazine, 50: 597-610.WOOLLEY, A.R. and JONES, G.C. 1987. The petrochemistry of the northern part of the Chilwa alkaline province, Malawi. In J.G. Fitton and B.G.J. Upton (eds), Alkaline igneous rocks. 335-55. Geological Society of London, Special Publication 30.}
}
@booklet {7224,
	title = {MONOD, T. and PALAUSI, G. 1961. Sur des manifestations fissurales de laves a nepheline au sud de lac Faguibine (Mali). Bulletin de l{\textquoteright}Institute Francais d{\textquoteright}Afrique Noire, Dakar, 23A: 251-82.},
	year = {1961},
	note = {MONOD, T. and PALAUSI, G. 1961. Sur des manifestations fissurales de laves {\`a} n{\'e}ph{\'e}line au sud de lac Faguibine (Mali). Bulletin de l{\textquoteright}Institute Fran{\c c}ais d{\textquoteright}Afrique Noire, Dakar, 23A: 251-82.}
}
@booklet {7257,
	title = {DIAS, M.de B. 1961. Geologia do Monte Muambe. Boletim, Servicos de Geologia e Minas, Provincia de Mocambique, 27: 37-64.},
	year = {1961},
	note = {DIAS, M.de B. 1961. Geologia do Monte Muambe. Boletim, Servi{\c c}os de Geologia e Minas, Provincia de Mo{\c c}ambique, 27: 37-64.}
}
@booklet {7258,
	title = {COELHO, A.V.P. 1961. Notas sobre a petrografia da regiao do Monte Muambe. Boletim. Servicos de Geologia e Minas, Provincia de Mocambique, 27: 65-88.},
	year = {1961},
	note = {COELHO, A.V.P. 1961. Notas sobre a petrografia da regi{\~a}o do Monte Muambe. Boletim. Servi{\c c}os de Geologia e Minas, Provincia de Mo{\c c}ambique, 27: 65-88.}
}
@booklet {7577,
	title = {GUEST, N.J., JAMES, T.C., PICKERING, R. and DAWSON, J.B. 1961. Angata Salei. Geological Survey of Tanganyika, Quarter Degree Sheet, 39.},
	year = {1961},
	note = {GUEST, N.J., JAMES, T.C., PICKERING, R. and DAWSON, J.B. 1961. Angata Salei. Geological Survey of Tanganyika, Quarter Degree Sheet, 39.}
}
@booklet {7643,
	title = {TRENDALL, A.F. 1961. Explanation of the geology of Sheet 45 (Kadam). Report, Geological Survey of Uganda, 6: 1-46.},
	year = {1961},
	note = {TRENDALL, A.F. 1961. Explanation of the geology of Sheet 45 (Kadam). Report, Geological Survey of Uganda, 6: 1-46.}
}
@booklet {7660,
	title = {BAILEY, D.K. 1961. Intrusive limestones in the Keshya and Mkwisi valleys, Northern Rhodesia. Quarterly Journal of the Geological Society of London, 117: 419-46.D.K. Bailey, pers. comm., 2000. CAIRNEY, T. 1964. A re-assessment of the origin of the Mkwisi i},
	year = {1961},
	note = {BAILEY, D.K. 1961. Intrusive limestones in the Keshya and Mkwisi valleys, Northern Rhodesia. Quarterly Journal of the Geological Society of London, 117: 419-46.D.K. Bailey, pers. comm., 2000. CAIRNEY, T. 1964. A re-assessment of the origin of the Mkwisi intrusive limestone, Northern Rhodesia. Annual Report on Scientific results 1962-63, Research Institute of African Geology, University of Leeds, 8: 25-6.HAMILTON, E.I. and DEANS, T. 1963. Isotopic composition of strontium in some African carbonatites and limestones and in strontium minerals. Nature, London, 198: 776-7.POWELL, J.L. 1965. Isotopic composition of strontium in carbonate rocks from Keshya and Mkwisi, Zambia. Nature, London, 206: 288-9.}
}
@booklet {7661,
	title = {BAILEY, D.K. 1961. Intrusive limestones in the Keshya and Mkwisi valleys, Northern Rhodesia. Quarterly Journal of the Geological Society of London, 117: 419-46.D.K. Bailey, pers. comm., 2000. CAIRNEY, T. 1964. A re-assessment of the origin of the Mkwisi i},
	year = {1961},
	note = {BAILEY, D.K. 1961. Intrusive limestones in the Keshya and Mkwisi valleys, Northern Rhodesia. Quarterly Journal of the Geological Society of London, 117: 419-46.D.K. Bailey, pers. comm., 2000. CAIRNEY, T. 1964. A re-assessment of the origin of the Mkwisi intrusive limestone, Northern Rhodesia. Annual Report on Scientific results 1962-63, Research Institute of African Geology, University of Leeds, 8: 25-6.}
}
