TY  - JOUR
A1  - Kelly, J.J. 
T1  - Improving the comparability of international migration statistics: Contributions by the Conference of European Statisticians from 1971 to date
Y1  - 1987
DO  - 10.2307/2546502 
JF  - International Migration Review 
VL  - 21
IS  - 4

ER  -