Villee, Claude Alvin, <br/><br/>
General zoology / 

 - 6th ed. 
 - Philadelphia   Saunders College Pub.,  1984. 
 - xvi, 856 p. :  ill. ;  27 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0030624517 
<br/><br/><label>LC Class. No.: </label>QL47.2  / .V71 1984