Focus groups :   supporting effective product development / 
edited by Joseph Langford and Deana McDonagh 
 - London:   Taylor & Francis,   2003 
 - x, 230 p.:   ill.;   25 cm 
<br/><br/> Includes bibliographical references (p.483-517) and index 
<br/><br/><label>ISBN: </label>0415262089 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Focused group interviewing<br/>Human engineering<br/>Design--Human factors