Fondazione Giangiacomo Feltrinelli. (1976). Kautsky, Bernstein, Schmidt. Paris: Union générale d'éditions.
Chicago Style (17th ed.) CitationFondazione Giangiacomo Feltrinelli. Kautsky, Bernstein, Schmidt. Paris: Union générale d'éditions, 1976.
MLA (8th ed.) CitationFondazione Giangiacomo Feltrinelli. Kautsky, Bernstein, Schmidt. Paris: Union générale d'éditions, 1976.
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