Enger, Eldon D. Concepts in Biology/ Eldon D. Enger - Twelfth Edition - 1221 Avenue of the Americas, New York: McGraw Hill c2007 - xxiii, 664 Pages: Colored Illustration 275 cm Include Index ISBN: 9780071109451 Subjects--Topical Terms: Biology Dewey Class. No.: DC, 574 / En57