APA (7th ed.) Citation

Roskin, M., & Berry, N. O. (2010). IR : the new world of international relations / Michael G. Roskin, Nicholas O. Berry: The new world of international relations (8th ed.). Longman.

Chicago Style (17th ed.) Citation

Roskin, Michael, and Nicholas O. Berry. IR : The New World of International Relations / Michael G. Roskin, Nicholas O. Berry: The New World of International Relations. 8th ed. San Francisco, Calif. ; London: Longman, 2010.

MLA (9th ed.) Citation

Roskin, Michael, and Nicholas O. Berry. IR : The New World of International Relations / Michael G. Roskin, Nicholas O. Berry: The New World of International Relations. 8th ed. Longman, 2010.

Warning: These citations may not always be 100% accurate.