TY  - BOOK
AU  - BULGARIA , INTERNATIONAL SOCIOLOGICAL ASSOCIATION
ED  - BULGARIA , INTERNATIONAL SOCIOLOGICAL ASSOCIATION
TI  - Transactions of the seventh world congress of sociology varna, sept 14-19,1970
U1  - Yp.5922.N70, L2.3 
PY  - 1972///
CY  - Bulgarian
PB  - International socialogical association        
ER  -