Citazione Stile APA (7a Edizione)

Olson, W. C. (1991). The theory and practice of international relations (8th ed.). Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

Olson, William C. The Theory and Practice of International Relations. 8th ed. Englewood Cliffs, N. J: Prentice-Hall, 1991.

Citatione MLA (9a ed.)

Olson, William C. The Theory and Practice of International Relations. 8th ed. Prentice-Hall, 1991.