Enger, Eldon D. Concepts in biology / Eldon D. Enger, Frederick C. Ross - 9th ed. - Boston, Mass. : McGraw-Hill, c2000 - 532 p. : ill. (chiefly col.), col. maps + 1 CD-ROM Includes bibliographical references and index ISBN: 0697360520 Subjects--Topical Terms: BIOLOGY LC Class. No.: QH308.2 / E533C 2000