Antonio Negri, Valvola Scelsi, R., & Thomas, P. (2008). Goodbye Mr Socialism: Radical politics in the 21st century. Serpent's Tail ; Seven Stories.

Antonio Negri, Raf Valvola Scelsi, and Peter Thomas. Goodbye Mr Socialism: Radical Politics in the 21st Century. London : USA: Serpent's Tail ; Seven Stories, 2008.

Antonio Negri, et al. Goodbye Mr Socialism: Radical Politics in the 21st Century. Serpent's Tail ; Seven Stories, 2008.