Cita APA (7a ed.)

Negri, A., & Emery, E. (2008). Empire and beyond (English ed.). Polity.

Cita Chicago Style (17a ed.)

Negri, Antonio, y Ed Emery. Empire and Beyond. English ed. Cambridge [etc.]: Polity, 2008.

Cita MLA (9a ed.)

Negri, Antonio, y Ed Emery. Empire and Beyond. English ed. Polity, 2008.