Stewart, David W <br/><br/>
Focus groups  theory and practice 

 - London  Sage publications  1990 
 - 152p.  22cm PB. 
 - Applied social research methods series .
<br/><br/><label>ISBN: </label>0803933908 
<br/><br/><label>Dewey Class. No.: </label>300.723  / STE