Enger, Eldon D. Concepts in biology / Eldon D. Enger, Frederick C. Ross, David B. Bailey. - Twelfth edition - xxiii, 664 pages : illustrations (chiefly color), maps (chiefly color) ; 28 cm. Includes index. ISBN: 0072986573 (hard copy : alk. paper) 0073227374 (pbk.) 9780072986570 9780073227375 LCCN: 2006002607 Subjects--Topical Terms: Biology.Life sciences.Science. LC Class. No.: QH308.2 / .E54 2007 Dewey Class. No.: 574