Play and development :  A symposium / 
With contributions by Jean Piaget ... et al ; Ed. by Maria W. Piers. 
 - [1st ed.] 
 - New York :  Norton,  [1972]. 
 - 176 p. :  ill. ;  21 cm. 
 - The Norton Library  N871 .
<br/><br/> Six papers from a series of meetings planned by the Erikson Institute, the School of Education, and the Dept. of Psychology of Loyola University, as part of the university's centennial activities. 
<br/><br/>Includes bibliogr. references 
<br/><br/><label>ISBN: </label>0393008711 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Play--Psychological aspects<br/>Child psychology<br/>Developmental psychobiology