de Vaus, David. <br/><br/>
Surveys in social research  / 
David de Vaus. 
 - 6th ed. 
 - London :  Routledge,  2014. 
 - xviii, 382 p. :  ill. ;  25 cm. 
<br/><br/>Includes Bibliographical references and Index. 
<br/><br/><label>ISBN: </label>9780415530187 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social Surveys.<br/>Social sciences-- Methodology
<br/><br/><label>Dewey Class. No.: </label>300.723