Spearman, Charles. <br/><br/>
The nature of 'intelligence' and the principles of cognition / 
Charles Spearman. 
 - New York :  Arno,  c1973. 
 - 358 p. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cognition.<br/>Intellect.
<br/><br/><label>LC Class. No.: </label>BF 431  / .S627