Harnack, R. Victor, Fest, Thorrel B. <br/><br/>
Group discussion  theory and technique 

 - New York  Meredith Publishing  1964 
 - 456p. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Group discussion<br/>Psychology
<br/><br/><label>Dewey Class. No.: </label>153.4  / HAR