Sjoberg, Gideon. <br/><br/>
A methodology for social research / 
by Gideon Sjoberg and Roger Nett. 
 - New York :  Harper & Row,  1968. 
 - x, 355 p. ;  25 cm. 
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research.