Mathias, Paul <br/><br/>
Groups and communities 
/ by Paul Mathias 
 - Poole:  Blandfford Press;  1984. 
 - 64p. 
<br/><br/><label>ISBN: </label>0 7137 1466 2 
<br/><br/><label>Dewey Class. No.: </label>301.34  / MAT/G