Enger, Eldon D. Concepts in biology / Eldon D. Enger, Frederick C. Ross, David B. Bailey - 11th ed. - Boston : McGraw-Hill, 2005 - xiv, 570 p. : ill. ; 28 cm. ISBN: 0072552891 (hard : alk. paper) RM317.82 Subjects--Topical Terms: Biology