Cass, Joan E. <br/><br/>
The significance of children's play 
[by] Joan Cass. 
 - London,  Batsford,  1971. 
 - 190 p.  23 cm. 
<br/><br/> Published in 1973 under title: Helping children grow through play. 
<br/><br/>"Films on play": p. [162]-177. Bibliography: p. [182]-187. 
<br/><br/><label>ISBN: </label>0713421606 
<br/><br/><label>LCCN: </label>76853032  
<br/><br/><label>Nat. Bib. No.: </label>B71-15630 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Play.<br/>Child psychology.
<br/><br/><label>LC Class. No.: </label>HQ782  / .C34 
<br/><br/><label>Dewey Class. No.: </label>155.41/8