Barry J Wadsworth <br/><br/>
Piaget's theory of cognitive and affective development 

 - 4th ed 
 - Longman, New York  1989 
 - xii,212p figs. 
<br/><br/><label>ISBN: </label>0-8013-0200-5 
<br/><br/><label>Dewey Class. No.: </label>136.72 Wad