Sperry, Len, <br/><br/>
Learning performance and individual differences :  Essays and readings / 
Len Sperry, Gerald S. Lesser. 
 - Glenview, Ill., :  Scott, Foresman,  [1972]. 
 - 331 p. ;  23 cm. 
<br/><br/>Bibliogr.: p. 321-326. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational psychology<br/>Academic achievement<br/>Intelligence levels<br/>Individual differences
<br/><br/><label>Dewey Class. No.: </label>370.15/2