Thomson, Godfrey. <br/><br/>
The factorial analysis of human ability /  Godfrey Thomson. 

 - 5th ed. 
 - London :  University of London Press,  c 1951. 
 - xv, 383 p. ;  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>331  331 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education -- Tests.
<br/><br/><label>Dewey Class. No.: </label>151.22 / T373f