APA (7th ed.) Citation

Roskin, M. G., & Berry, N. O. (1993). IR: The new world of international relations / Michael G. Roskin, Nicholas O. Berry. Prentice-Hall.

Chicago Style (17th ed.) Citation

Roskin, Michael G., and Nicholas O. Berry. IR: The New World of International Relations / Michael G. Roskin, Nicholas O. Berry. Englewood Cliffs, New Jersey: Prentice-Hall, 1993.

MLA (9th ed.) Citation

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