TY  - BOOK
ED  - Bulgaria.
TI  - Returns of the 1 December 1965 population census in the People's Republic of Bulgaria: three percent advanced sample tabulations 
PY  - 1966///
CY  - Sofia [Bulgaria]
PB  - Central Statistical Office at the Council of Ministers
KW  - Censuses
KW  - Population
KW  - statistics
KW  - Demography
KW  - Bulgaria
ER  -