Bray, Charles Collins. <br/><br/>
The productive group / 
by Charles Collins Bray. 
 - Washington :  University Press of America,  c1977. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0819101818 
<br/><br/><label>LCCN: </label>78303332 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Group relations training.
<br/><br/><label>LC Class. No.: </label>HM134  / .B688 
<br/><br/><label>Dewey Class. No.: </label>301.11