TY  - BOOK
AU  - Bergson, Abram.
TI  - Productivity and the Social System: The USSR and The West / 
SN  - 0-674-71165-3
U1  - X:2.58 
PY  - 1929///
CY  - Cambridge : 
PB  - Harvard University Press , 
KW  - Social Economy
ER  -