Hansen, Morris H, et al. <br/><br/>
Sample survey methods and theory, Vol.2 

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 - John Wiley & Sons Inc., New York  1953 
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<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic statistics
<br/><br/><label>Dewey Class. No.: </label>330.0212  HAN-S.2