TY  - BOOK
AU  - Bilsborrow,Richard E.
ED  - International Labour Organization.
TI  - International migration statistics: guidelines for improving data collection systems 
SN  - 9221095177
PY  - 1997///
CY  - Geneva
PB  - International Labour Office
KW  - Emigration and immigration
KW  - Data collection
KW  - methods
N1  - A study published with the financial support of the United Nations Population Fund
ER  -