Hardin, Garrett James Biology, its principles and implications. Drawings by Evan L. Gillespie. - San Francisco W.H. Freeman 1961. - 682 p. illus. - A Series of biology texts . "The present work is the result of a natural evolution of Biology: its human implications." Includes bibliography. LCCN: 61014908 /L/r85 Subjects--Topical Terms: Biology LC Class. No.: QH308 / .H258 Dewey Class. No.: 574