Villee, Claude Alvin,  1917- <br/><br/>
Biology / 
Claude A. Villee 
 - 7th ed 
 - Philadelphia :  W. B. Saunders,  1977 
 - xviii, 980 p. :  ill. ;  24 cm. 
<br/><br/>Includes Indexes 
<br/><br/><label>ISBN: </label>0721690238 
<br/><br/><label>LCCN: </label>76-14694 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology