TY  - GEN
AU  - 
AU  - Open University
TI  - Historical Demography: Problems and Projects
U1  - 304.6/OPE 
PY  - 1974///
CY  - MILTON KEYNES
PB  - The Open University Press
N1  - POPULATION AND ECONOMY; POPULATION MIGRATION & SOCIETY; POPULATION POLICY
ER  -