Cita APA (7a ed.)

Little, R., & Smith, M. (1991). Perspectives on world politics (2nd ed.). Routledge.

Cita Chicago Style (17a ed.)

Little, Richard, y Michael Smith. Perspectives on World Politics. 2nd ed. London: Routledge, 1991.

Cita MLA (8a ed.)

Little, Richard, y Michael Smith. Perspectives on World Politics. 2nd ed. Routledge, 1991.