Backstrom, Charles H. <br/><br/>
Survey research 
by Charles H. Backstrom and Gerald D. Hursh 
 - Evanston  Northwestern Univ. Press  1963 
 - 192p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences --Research<br/>Public opinion polls
<br/><br/><label>Dewey Class. No.: </label>I5513/068 B126