TUBBS, L. Stewart <br/><br/>
A System Approch to Small Group Interaction 

 - 3rd 
 - U.S.A  Random House  1978 
 - xi, 402p. 
<br/><br/><label>ISBN: </label>0394365399 
<br/><br/><label>LC Class. No.: </label>HD66  / .T82