Categorical perception : the groundwork of cognition 
edited by Stevan Harnad 
 - Cambridge  Cambridge University Press  1987 
 - x, 599 p. : ill. ; 24 cm.  
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>521385946 
<br/><br/><label>ISSN: </label>86034286 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Categorization (Psychology)<br/>Perception
<br/><br/><label>Dewey Class. No.: </label>153.7 HAR