Simpson, George Gaylord. <br/><br/>
Life: an introduction to biology/ 
George Gaylord Simpson, William S. Beck. 
 - Shorter ed. 
 - New York :  Harcourt, Brace & World,  1969 
 - xiii, 546 p. :  ill. (part col.) ;  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology.