Harnack, Robert Victor,  1927- <br/><br/>
Group discussion :  theory and technique / 
R. Victor Harnack, Thorrel B. Fest, Barbara Schindler Jones. 
 - 2d ed. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  c1977. 
 - xiv, 299 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographies and indexes. 
<br/><br/><label>ISBN: </label>0133652475 
<br/><br/><label>LCCN: </label>76040060 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Discussion.
<br/><br/><label>LC Class. No.: </label>LC 6515  / .H35 1977