General zoology / 
Tracy I. Storer ... [et al.] 
 - 6th ed. 
 - New York :  McGraw-Hill,  1979 
 - 902 p. :  ill. ;  25 cm. 
<br/><br/> 4th edition by Tracy I. Storer and Robert L. Usinger 
<br/><br/><label>ISBN: </label>0070617805 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology