APA (7th ed.) Citation

Roskin, M. G., & Berry, N. O. (2007). IR: The new world of international relation (6th ed.). Pearson/Prentice Hall.

Chicago Style (17th ed.) Citation

Roskin, Michael G., and Nicholas O. Berry. IR: The New World of International Relation. 6th ed. Upper Saddle River, N.J: Pearson/Prentice Hall, 2007.

MLA (9th ed.) Citation

Roskin, Michael G., and Nicholas O. Berry. IR: The New World of International Relation. 6th ed. Pearson/Prentice Hall, 2007.