Mayr, Ernst & Ashlock, Peter D. <br/><br/>
Principles of Systematic Zoology 
By Ernst Mayr & Peter D. Ashlock 
 - Second Edition 
 - New York  McGraw Hill, Inc.  1991 
 - xx, 475 pages, 23 cm. 
<br/><br/> includes glossary, bibliographic references & index 
<br/><br/><label>ISBN: </label>0-07-112701-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology-Classification. 
<br/><br/><label>Dewey Class. No.: </label>591.012 M44