Stewart, David W. <br/><br/>
Focus group theory and practice / 
David W. Stewart 
 - Second edition. 
 - xii, 188 pages :  22 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0761925837 
<br/><br/><label>LC Class. No.: </label>H 61.28  / S74 2007