Kalton, G Moser, C A <br/><br/>
Survey methods in social investigation 

 - 2nd ed. 
 - London  Heinemann educational books ltd.  1971 
 - xvii, 549p.; 22cm. 
<br/><br/><label>ISBN: </label>435826042 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research methods<br/>Sample design<br/>Social surveys