Harnack, Victor R. & Fest, Thorrel B. <br/><br/>
Group Discussion: Theory and Technique 
By R. Victor Harnack & Thorrel B. Fest 
 - New York  Appleton-Century-Crofts  1964 
 - xiv, 456 pages, 22 cm. 
<br/><br/> include index 
<br/><br/><label>Dewey Class. No.: </label>302.3 H22