Enger, Eldon D. <br/><br/>Concepts in biology/ Eldon D. Enger.--  -- Sixth edition.  -- Dubuque, IA:  Wm. C. Brown Publishers,  1991. <br/>xiii.,  col.: ill.;  27. <br/><br/> Includes index. <br/><br/><label>ISBN: </label>0697137465 <br/><br/><label>Subjects--Topical Terms: </label><br/>Biology<br/><br/><label>Dewey Class. No.: </label>HS Cir 574 C744 1991