Gregson (Robert Anthony Mills). <br/><br/>
Psychometrics of similarity/ 
Robert A. M. Gregson. 
 - New York:  Academic Press,  1975. 
 - ix, 262 p. :  ill. ;   24 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0123015502 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychometrics.<br/>Similarity (Psychology).