Gaya APA

Hardt, M, &, N, A. (2004). Multitude: War and democracy in the age of empire. . New York: New York Penguin Press.

Gaya MLA

Hardt, Michael, &, Negri,, Antonio. "Multitude: War and democracy in the age of empire. ". New York: New York Penguin Press, 2004. Buku.