Wilson Stephen <br/><br/>
Informal groups    An introduction 

 - Englewood  Cliffs Prentice-Hill,Inc USA       1978 
 - xiii,305p.  cm. 
<br/><br/><label>ISBN: </label>0134646363 
<br/><br/><label>Standard No.: </label>249,420 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Y1:3, L8