Villee, Claude Alvin,  1917- <br/><br/>
General zoology / 
Claude A. Villee, Warren F. Walker, Jr., Robert D. Barnes 
 - 6th ed. 
 - Philadelphia :  Saunders College Publishing,  1984 
 - 856 p. :  ill. ;  27 cm. 
<br/><br/><label>ISBN: </label>0030624517 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology