National  Migration sureys : 
The core questionaire / 
 - NewYork :  United nation ,  1980. 
 - xlvi,806p.:  ill; 
<br/><br/><label>ISBN: </label>9789353285609 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Migration
<br/><br/><label>Dewey Class. No.: </label>304.8095  / NAT/N