Gregory, Robert J. <br/><br/>
Psychological testing :  History, principles and applications / 
By Robert J Gregory. 
 - 6th ed. 
 - New Delhi :  Pearson Education,  2014. 
 - 668p. ;  00 cm. 
<br/><br/><label>ISBN: </label>9789332536715 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PSYCHOLOGY.
<br/><br/><label>Dewey Class. No.: </label>150  / GRE