Readings in learning and human abilities:  educational psychology / 
Edited by Richard E. Ripple. 
 - 2d ed. 
 - New York:  Harper & Row,  1971. 
 - xvii, 484 p. :   ill. ;   24 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0060454113 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational psychology.