Fowler, Floyd J <br/><br/>
Survey Research Methods . 

 - California:  Sage Publications;  2002. 
 - x.178 p:   21.9 cm 
<br/><br/><label>ISBN: </label>0761921915 780761921912 
<br/><br/><label>Dewey Class. No.: </label>300.7 FOW