Enger, Eldon D. <br/><br/>
Concepts in biology / 
Eldon D. Enger, Frederick C. Ross. 
 - 9th edition. 
 - Boston :  McGraw- Hill,  c2000. 
 - 532 pages  Illustrations  27 cm 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0071184465 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology.