Mayr , Ernst <br/><br/>
Principles of systematic zoology / 
Ernst Mayr and Peter D. Ashlock 
 - Second edition 
 - New York :  McGraw-Hill, Inc.  1991 
 - xx, 475 pages :  26 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0070411441 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology
<br/><br/><label>LC Class. No.: </label>QL 351 M39 1991 CIRC