Simpson, George. <br/><br/>
Life :  an introduction to biology / 
George Simpson & William beck. 
 - 2nd edition. 
 - New York :  Harcourt Brace and World Incorporation,  c1966. 
 - 868 pages :  Illustrations. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology.