Groves, Robert M. and others <br/><br/>
Survey methodology   
Robert M. Groves ...et.al. 
 - New Jersey  John Wiley  2004 
 - xix, 424p. Bibl. Index. 
 - Wiley series in survey methodology .
<br/><br/>  
<br/><br/><label>ISBN: </label>9780471483489 
<br/><br/><label>Dewey Class. No.: </label>330.0182  / G884.SM