Enger, Eldon D. Concepts in biology / Eldon D. Enger, Frederick C. Ross. - 8th. - Dubuque, IA : WM. C. Brown Publishers, 1997. - xvii, 458 p. : ill. ; 28 cm. - Concepts in biology. . Includes index. Closed. ISBN: 0697272052 LCCN: 3037050 Subjects--Topical Terms: Biology.