- Author: Valentino Gerratana, Lucio Magri, Massimo L. Salvadori, Yvon Bourdet, Franco Ferri, Lisa Foa. Enzo Colloti, Sergio Garavini, Antonio Gramsci
- Language: Spanish
- Year: 1977
- Author: Franco Ferri (ed.)
- Language: Italian
- Year: 1977
- Author: Franco Ferri (ed.)
- Language: Italian
- Year: 1977