Hansen Morris, H et al. <br/><br/>
Sample survey methods and theory, Vol.1 / 
by Morris H Hansen 
 - John Wiley & Sons Inc.,   New York :  1953. 
 - 638p. : 
<br/><br/> Vol 1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic statistics
<br/><br/><label>Dewey Class. No.: </label>330.0212  HAN-S.1