Dela Peņa, Renato A., Jr.; Gracilla, Daniel E. [and] Pangilinan, Christian R. General biology. Combined book 1 & 2 / Renato A. Dela Peņa...[and two others] - iv, 201 pages : illustrated ; 26 cm. Bibliography p.199-200 ISBN: 978-621415-013-7 Subjects--Topical Terms: Biology. Dewey Class. No.: 574