TY  - BOOK
AU  - Ulam, Adam Bruno
TI  - The unfinished revolution : : an essay on the sources of influence of Marxism and communism 
AV  - HX 36 U42 1960
PY  - 1960///
CY  - New York 
PB  - : Random House
KW  - Socialismo
KW  - - Historia
KW  - Comunismo
ER  -