Guilford, J. P.  1897- <br/><br/>
Psychometric methods 
J.P.Guilford. 
 - New Delhi:  Tata McGraw-Hill,  1971. 
 - 597p. :  ill. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychometrics.<br/>Psychology--Mathematical models.