Origin of manganese deposits of Busuanga Island, Philippines - Sorem, Ronald Keith 1924- (1958)
Bibliography : l. 132-134.
Thesis (Ph.D.)--University of Wisconsin, 1958.
This "O-P" book is an authorized reprint of the original edition produced by microfilm-xerography by University Microfilms, Inc., Ann Arbor, Michigan, 1966.
Keywords: Manganese ores -- Philippines