SCHWARTZ, William, <br/><br/>
The practice of group work. 
William Schwartz 
 - New York,  Columbia University Press,  c1971. 
 - x, 284 p. 
<br/><br/> Includes bibliographies. 
<br/><br/><label>ISBN: </label>0231032412  
<br/><br/><label>Dewey Class. No.: </label>361.4