Trecker, Harleigh B <br/><br/>
Social group work  principles and parctice 

 - New York  Association Press  1972 
 - 350 p. 
<br/><br/><label>ISBN: </label>080961846x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SOCIAL PROBLEMS
<br/><br/><label>Dewey Class. No.: </label>361.4  / TRE