Backstrom, Charles Herbert,  1926-. <br/><br/>
Survey research / 
by Charles H. Backstrom and Gerald D. Hursh. 
 - Chicago :  Northwestern University Press,  1963. 
 - xix, 192 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>081010251X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political science--Research.<br/>Social sciences--Research.