TY  - BOOK
AU  - BULGARIA, INTERNATIONAL SOCILOGICAL ASSOCIATION
ED  - BULGARIA, INTERNATIONAL SOCILOGICAL ASSOCIATION
TI  - Transactions of the seventh world congress of sociology
U1  - Yp.5922.N70, N3.4 
PY  - 1973///
CY  - Bulgaria
PB  - International sociological association        
ER  -