Citazione Stile APA (7a Edizione)

Olson , W. C., & By Sonderman , . F. A. (1966). The Theory and practice of international relations (2nd ed.). Prentice - Hall.

Citazione stile Chigago Style (17a edizione)

Olson , William C., e Fred A. By Sonderman. The Theory and Practice of International Relations. 2nd ed. Englewood Cliffs N. J.: Prentice - Hall, 1966.

Citatione MLA (9a ed.)

Olson , William C., e Fred A. By Sonderman. The Theory and Practice of International Relations. 2nd ed. Prentice - Hall, 1966.