Zimpfer, David G. <br/><br/>
Group work in the helping professions:  a bibliography/ 
David G Zimpfer 
 - Washington D. C;  The association for specialist in group work,  c 1976. 
 - vii, 452 p.:  22 cm 
<br/><br/> D-99-11874 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>371.4041  / ZIM