International migration statistics :  organization and operation, recommended standards, sampling. 

 - New York,  1953. 
 - United Nations. Statistical Office. Statistical papers ;  ser.M no.20 .
 - Statistical papers. Series M. ;  Statistical papers. Series M. ;  ser.M no.20 .
<br/><br/> United Nations. [Document] ST/STAT/ser.M/20.  "United Nations publication. Sales no.: 1958.XVII.10." 
<br/><br/>Bibliography: p. 25. 
<br/><br/><label>LCCN: </label>54000714 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Emigration and immigration -- Statistics.--Emigration and immigration -- Statistics.