Cita APA (7th ed.)

Vasquez, J. A. (1990). Classics of international relations (2nd.ed.). Prentice Hall.

Cita Chicago (17th ed.)

Vasquez, John A. Classics of International Relations. 2nd.ed. New Jersey: Prentice Hall, 1990.

Cita MLA (9th ed.)

Vasquez, John A. Classics of International Relations. 2nd.ed. Prentice Hall, 1990.