Group work: foundations & frontiers 
edited by Harleigh B. Trecker 
 - New York  Whiteside  1955 
 - 418p. 
 - American Association of Group Workers .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social group work
<br/><br/><label>Dewey Class. No.: </label>Q25 T713g