Krueger , Richard A. <br/><br/>
Focus groups :  a practical guide for applied research / 
Richard A. Krueger & Mary Anne Casey 
 - 3 
 - California :  Sage publication,  2000       
 - xii 213 p. 
<br/><br/><label>ISBN: </label>0761920706 
<br/><br/><label>LC Class. No.: </label>H 61.28 K94f 2000