APA (7th ed.) Citation

Roskin, M., & Berry, N. O. (1993). IR: The new world of international relations (2nd ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Roskin, Michael, and Nicholas O. Berry. IR: The New World of International Relations. 2nd ed. Englewood Cliffs, N.J.: Prentice-Hall, 1993.

MLA (8th ed.) Citation

Roskin, Michael, and Nicholas O. Berry. IR: The New World of International Relations. 2nd ed. Prentice-Hall, 1993.