Roberts, Robert W. <br/><br/>
Theories of social work with groups  / 
edited by Robert W. Robert s and Helen Northen 
 - New York :  Columbia University Press,  1976. 
 - xviii, 401 p. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0231038852 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social group work
<br/><br/><label>Dewey Class. No.: </label>361.4