Cita APA (7a ed.)

Sampedro, R., & Hillyard, S. (2004). Global issues (1a. ed.). Oxford University Press.

Cita Chicago Style (17a ed.)

Sampedro, Ricardo, y Susan Hillyard. Global Issues. 1a. ed. Oxford: Oxford University Press, 2004.

Cita MLA (9a ed.)

Sampedro, Ricardo, y Susan Hillyard. Global Issues. 1a. ed. Oxford University Press, 2004.