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1
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2
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3by P. Belov.Subjects: “…[Dialectical materialism, Philosophy, Lenin, Vladimir Il'ich, 1870-1924]…”
Published 1952.
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4by V. I. Lenin.Subjects: “…[Dialectical materialism, Lenin, Vladimir Il'ich, 1870-1924, Socialism, Knowledge, Theory of, Philosophy]…”
Published 1961.
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5by V. I. Lenin.Subjects: “…[Dialectical materialism, Lenin, Vladimir Il'ich, 1870-1924, Socialism, Knowledge, Theory of, Philosophy]…”
Published 1956.