A short manual on sampling, elements of sample survey theory 
by Statistical Office of the United Nations. Department of Economic and Social Affairs 
 - New York  Statistical Office, United Nations, Department of Economic and Social Affairs  1960 
 - 214+p. 
 - Studies in methods. Series F No. 9 .
<br/><br/><label>Dewey Class. No.: </label>A800 Un3s/1