understanding life Alters, Sandra. creator text St. Louis Mosby c1996 2nd ed. monographic xxxiv, 845 p. : ill. (some col.), col. maps ; 28 cm. Sandra Alters. Previous ed. has title: Biology today. Includes bibliographical references and index. Biology Natural history (General). Biology (General) Human biology Natural history (General). Biology (General) QH308.2 .A57 1996 574 Alters, Sandra. 0815138466 96137935 UOEL 000 20150803155611.0 1169387