Vaus, D.A.de <br/><br/>
Surveys in social research 

 - 2nd ed 
 - LoNew Delhion: Unwin Hyman  1986 
 - xiv, 343p.  22cm 
<br/><br/><label>ISBN: </label>0044457227 
<br/><br/><label>Dewey Class. No.: </label>300.723,  / vau