TY  - BOOK
AU  - Ravenstein,Ernest George
TI  - The laws of migration
SN  - 0405079958
PY  - 1976///
CY  - New York
PB  - Arno Press
KW  - Migration, Internal
KW  - Emigration and immigration
N1  - Reprint of the title originally published in 2 parts in v. 48, pt. 2, June, 1885 and v. 52, pt. 2, June, 1889 of the Journal of the Royal Statistical Society
ER  -