Play and development :  a symposium with contributions by Jean Piaget, Peter H. Wolf, Rene A. Spitz, Konrad Lorenz, Lois Barclay Murphy, Erik H. Erikson. 

 - New York :  Norton,  1972. 
 - 176 p. :  ill. ;  19 cm. +  pbk. 
<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 bibliographical references. 
<br/><br/><label>ISBN: </label>0393008711 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Play--Psychological aspects <br/>Child psychology<br/>Developmental psychobiology.
<br/><br/><label>Dewey Class. No.: </label>155.418