McFadden, C. J. (1938). The metaphysical foundations of dialectical materialism. Catholic University of America.
Lua i Stíl Chicago (17ú heag.)McFadden, Charles Joseph. The Metaphysical Foundations of Dialectical Materialism. Washington, D.C.: Catholic University of America, 1938.
Lua MLA (8ú heag.)McFadden, Charles Joseph. The Metaphysical Foundations of Dialectical Materialism. Catholic University of America, 1938.
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