TY  - BOOK
AU  - Plekhanov,George Valentinovich
TI  - The materialist conception of history
PY  - 1940///]
CY  - New York
PB  - International publishers
KW  - Labriola, Antonio,
KW  - Marx, Karl,
KW  - Philosophy
KW  - History
KW  - Materialism
ER  -