Group development / 
edited by Leland P.Bradford 
 - 2nd ed. rev and enl. 
 - San Diego, Calif. :  University Associates,  1978 
 - 234 p. ;  23 cm. 
<br/><br/><label>LCCN: </label>78-51283 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Small groups