Cita APA (7a ed.)
Roskin, M. G., & Berry, N. O. (2008). IR: <the> new world of international relations (7th ed.). Prentice/Hall.
Cita Chicago Style (17a ed.)
Roskin, Michael G., y Nicholas O. Berry. IR: <the> New World of International Relations. 7th ed. Upper Saddle River: Prentice/Hall, 2008.
Cita MLA (9a ed.)
Roskin, Michael G., y Nicholas O. Berry. IR: <the> New World of International Relations. 7th ed. Prentice/Hall, 2008.
Precaución: Estas citas no son 100% exactas.