Not Work Alone :   A Cross -Culture View of activities Superfluos to Survival /  
edited by Jeremy Cherfas.  
 - California :    SAGE,  1980. 
 - 255 p. :  ill. ; 
<br/><br/> Includes index  
<br/><br/><label>ISBN: </label>80391394 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Play
<br/><br/><label>LC Class. No.: </label>PN 637 .J39 1980