TY  - BOOK
AU  - Kritz,Mary M.
TI  - International migration systems: a global approach 
AV  - JV 6091 I5 1992
PY  - 1992///
CY  - Oxford
PB  - Clarendon Press
KW  - Emigration and immigration
KW  - Congresses
KW  - Government policy
ER  -