TY  - BOOK
ED  - National Bureau of Economic Research.
TI  - International migrations
U1  - 325.08 
PY  - 1969///
CY  - New York
PB  - Gordon and Breach
KW  - Emigration and immigration
KW  - Collections
KW  - Statistics
KW  - Population
N1  - Includes bibliographic references
ER  -