TY  - BOOK
AU  -  Marx, Karl 
AU  - Aveling,Eleanor Marx
TI  - Value, price and profit,
AV  - HB 771 M392v 1971
PY  - 1971///, c1935]
CY  - New York
PB  - International Publishers
KW  - Economics
KW  - Economía
ER  -