Obuong' S.I.O 2020 K.C.S.E Masterpiece Revision Biology Photography Manual With Answers Running title - Rev ed2020 - Nairobi,Kenya Masterpiece productions 2020 - vii, 235p col ill. 17, 25cm ISBN: 978 9966 06 007 3 Subjects--Topical Terms: Biology LC Class. No.: 373.570 Dewey Class. No.: 373.570