Against the reactionary degeneration of the Third International
- Communist organisation and discipline (1924)
- The Trotsky question (1925)
- Bordiga: intervention at the Sixth Enlarged ECCI (1926)
- Correspondance between Bordiga and Trotsky (1926)
- Letter from Amadeo Bordiga to Karl Korsch (1926)
- Draft theses for the 3rd Congress of the Communist Party of Italy presented by the Left (Lyons, 1926)
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