Guilford, J. P. <br/><br/>
Psychometric methods   

 - 2nd 
 - New York  McGraw-Hill  1954 
 - ix, 597p. Index, Appendix 
 - McGraw-Hill series in Psychology .
<br/><br/>  
<br/><br/><label>Dewey Class. No.: </label>519.50193  / G956.PM