De Vaus, D. <br/><br/>
Surveys in social research / 
 Social research 
David de Vaus 
 - 6th ed. 
 - New York :  Routledge,  2014 
 - xviii, 382 p. :  ill. ;  26 cm. 
 - Social research today (Routledge (Firm)) .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780415530156 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social surveys<br/>Social sciences--Research--Methodology