Progress in group and family therapy / 
Clifford J. Sager. 
 - New York :  Brunner/Mazel,  c1972. 
 - 935 p. 
<br/><br/><label>ISBN: </label>087300735 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Family psychotherapy.
<br/><br/><label>LC Class. No.: </label>RC 488.5  / .S35