Boudin, L. B. (1907). The theoretical system of Karl Marx in the light of recent criticism. C.H. Kerr.
Lua i Stíl Chicago (17ú heag.)Boudin, Louis Boudianoff. The Theoretical System of Karl Marx in the Light of Recent Criticism. Chicago: C.H. Kerr, 1907.
Lua MLA (9ú heag.)Boudin, Louis Boudianoff. The Theoretical System of Karl Marx in the Light of Recent Criticism. C.H. Kerr, 1907.
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