American Psychological Association
Marx, Karl, & Engels, Frederick ( 1975 ). Collected Works Engels 1838-1842 ( 00 ed. ). Progress Publishers.
Modern Language Association
Marx, Karl and Engels, Frederick. Collected Works Engels 1838-1842 . Progress Publishers. 1975
Chicago Citation
Marx, Karl and Engels, Frederick. Collected Works Engels 1838-1842 . 00 .Moscow
: Progress Publishers, 1975.
American Medical Association
Marx, Karl and Engels, Frederick. Collected Works Engels 1838-1842 . Progress Publishers; 1975.
