Agazarian, Yvonne. <br/><br/>
The visible and invisible group :  two perspectives on group psychotherapy and group process / 
co-therapists Yvonne Agazarian, Richard Peters. 
 - London :  Karnac,  1995. 
 - 292p. :  ill. ;  23 cm. 
 - Maresfield Library .
<br/><br/> Originally published: Routledge & Kegan Paul, 1981. 
<br/><br/><label>ISBN: </label>1855751194 : 
<br/><br/><label>Nat. Bib. No.: </label>GB95S3190  bnb 
<br/><br/><label>Dewey Class. No.: </label>616.89152