Cornforth, M. (1971). Dialectical materialism: An introduction, Maurice Cornforth. International Publishers.
Lua i Stíl Chicago (17ú heag.)Cornforth, Maurice. Dialectical Materialism: An Introduction, Maurice Cornforth. New York: International Publishers, 1971.
Lua MLA (8ú heag.)Cornforth, Maurice. Dialectical Materialism: An Introduction, Maurice Cornforth. International Publishers, 1971.
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