@booklet {6825,
	title = {ALBERTI, A., CASTORINA, F., CENSI, P., COMIN-CHIARAMONTI, P. and GOMES, C.B. 2000. Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29: (in press).ISSA, A., DOS SANTOS, A.B.R.M.D., RIFFEL, B.F., LAPIDO},
	year = {2000},
	note = {ALBERTI, A., CASTORINA, F., CENSI, P., COMIN-CHIARAMONTI, P. and GOMES, C.B. 2000. Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29: (in press).ISSA, A., DOS SANTOS, A.B.R.M.D., RIFFEL, B.F., LAPIDO-LOUREIRO, F.E.V. and MCREATH, I. 1991. Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40: 205-26.LAPIDO-LOUREIRO, F.E. 1973. Carbonatitos de Angola. Mem{\'o}rias e Trabalhos do Instituto de Investiga{\c c}{\~a}o Cient{\'\i}fica de Angola, 11: 1-242.MACHADO, F.J. de S. 1958. The volcanic belt of Angola and its carbonatites. Publication. Commission for Technical Cooperation in Africa South of the Sahara. Joint Meeting, Leopoldville, 44: 309-17.}
}
