Montecillo, Lupo Abaquita, 1934-.

Mineralogy and chemistry of certain Philippine soils [microform] / Lupo Abaquita Montecillo. - Ann Arbor, Mich. : University Microfilms International, 1973. - 1 microfilm reel : positive ; 35 mm.

Thesis (Ph.D.) - Purdue University, 1973.


Ore--deposits--Philippines.