The Communist Fraction inside the PSI and its struggle against Social Democracy
- The Balkan war (1912)
- Is this the time to form "soviets"? (1919)
- The System of Communist Representation (1919)
- Letter of The Communist Fraction of the PSI to the III International (1919)
- Socialism and Anarchy (1919)
- Socialists and Anarchists (1920)
- Theses on the Role of the Communist Party in the Proletarian Revolution (1920)
- Letter of The Communist Fraction of the PSI to the III International (1920)
- Bolshevism defamed by the Anarchists (1920)
- Seize Power or Seize Factory? (1920)
- Theses of the Abstentionist Communist Faction of the Italian Socialist Party (1920)
- Towards the Establishment of Workers' Councils in Italy (1920)
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