Wadsworth, Barry J. <br/><br/>
Piaget’s theory of cognitive development :  An introduction for students of psychology and education / 
Barry J. Wadsworth ; With drawings by the author. 
 - New York :  David McKay Co., Inc.,  1972. 
 - xii, 140 p. :  ill. 
<br/><br/> Includes index 
<br/><br/>Bibliogr.: p. 135-138 
<br/><br/><label>Subjects--Personal Names: </label><br/>Piaget, Jean, 1896-1980. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cognition in children<br/>Emotions in children<br/>Child psychology<br/>Cognition--In infancy and childhood