Krueger, Richard A. <br/><br/>
Focus groups  a practical guide for applied research 
By Richard A. Krueger Mary Anne Casey 
 - 5 ed.   
 - Log Angeles  Sage publications  2015 
 - xx, : 252p.  
<br/><br/> Includes bibliographical references and index  
<br/><br/><label>Dewey Class. No.: </label>300.723 KRU