The Psychology of learning and motivation / 
	edited by Gordon H Bower 
 - Vol. 2 
 - San Diego, Calif.:  Academic Press,  1968 
 -  23 cm. 
 - Advances in research and theory .
<br/><br/><label>ISBN: </label>0125433026 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational psychology<br/>Motivation (Psychology)