TY  - SER
AU  -  Labriola, Antonio, 
TI  -  Essays on the Materialistic Conception of History 
AV  - HX 
PY  - 2010///
PB  -  Project Gutenberg, 
KW  -  Marx, Karl, 1818-1883. Manifest der Kommunistischen Partei
KW  -  Materialism
KW  -  History -- Philosophy
KW  -  Socialism
N1  -  Public domain in the USA;  Text
UR  -  http://www.gutenberg.org/ebooks/32644
ER  -