Cita APA (7a ed.)

Hamilton, K., & Langhorne, R. (2011). The practice of diplomacy: Its evolution, theory, and administration (2nd ed.). Routledge.

Cita Chicago Style (17a ed.)

Hamilton, Keith, y Richard Langhorne. The Practice of Diplomacy: Its Evolution, Theory, and Administration. 2nd ed. Milton Park, Abingdon, Oxon [England] ; New York: Routledge, 2011.

Cita MLA (9a ed.)

Hamilton, Keith, y Richard Langhorne. The Practice of Diplomacy: Its Evolution, Theory, and Administration. 2nd ed. Routledge, 2011.