Hey, Jody <br/><br/>
Genes, categories, and species : the evolutionary and cognitive causes of the species problem 
Jody Hey 
 - Oxford  Oxford University Press  2001 
 - xvii, 217 p. : ill. ; 22 cm 
<br/><br/> Includes bibliographical references (p. 195-211) 
<br/><br/><label>ISBN: </label>9780195144772 
<br/><br/><label>ISSN: </label>45655 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Species
<br/><br/><label>Dewey Class. No.: </label>576.86 HEY