McFadden, C. J. (1939). The philosophy of communism. Benziger Bros..
Lua i Stíl Chicago (17ú heag.)McFadden, Charles Joseph. The Philosophy of Communism. New York ; Boston: Benziger Bros., 1939.
Lua MLA (8ú heag.)McFadden, Charles Joseph. The Philosophy of Communism. Benziger Bros., 1939.
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