@booklet {4469, title = {HERZ, N. 1976. Titanium deposits in alkalic igneous rocks. Professional Paper, United States Geological Survey, 959-E: 1-6}, year = {1976}, note = {HERZ, N. 1976. Titanium deposits in alkalic igneous rocks. Professional Paper, United States Geological Survey, 959-E: 1-6} }