Brown, William. <br/><br/>
Essentials of mental measurement   
by William Brown and Godfrey H Thomson 
 - 4th 
 - Cambridge  Cambrdige University Press  1940 
 - ix, 256p.  incl. app., ind. 
 - Cambridge Psychological Library .
<br/><br/><label>Dewey Class. No.: </label>152.8  / N40