Enger, Eldon D. Student study guide to accompany concepts in biology / Eldon D. Enger and Frederick C. Ross - 9th ed. - Boston : McGraw-Hill, c2000. - xix, 460 p. : ill. ; 29 cm. Includes index. ISBN: 0697360563 LCCN: Subjects--Topical Terms: Biology LC Class. No.: QH308.2 / .C66 2000