Johnson, George B 1942-. Human Biology : Exploring Concepts / George B. Johnson. - xxiv, 406, [32] pages : illustration (some color) ; 28 cm. Includes index. ISBN: 0697221733 LCCN: 93073944 Subjects--Topical Terms: Human biology.Human ecology. LC Class. No.: QP34.5 / .J64 1994 Dewey Class. No.: 612