"De los Santos, Hector C." Homo sapiens : structure and function / Hector C. De Los Santos - Manila, Philippines : UST Cooperative 1990 - 276 pages : illustrations ; 26 cm. Subjects--Topical Terms: Human evolution.Human beings -- Origin. LC Class. No.: Fil GN281 / .D4 1990 Dewey Class. No.: F 611 Sa59