TY  - BOOK
AU  - Momjan, K.H.
AU  - Sdonikova, G., tr.
TI  - Landmarks in history: the Marxist doctrine of socio-economic formations 
SN  - (N.A.) :
U1  - 335.4092   21
PY  - 1980///
CY  - Moscow
PB  - Progress Publishers
KW  - History
KW  - Socio-economic formation
KW  - Social change
ER  -