Rourke, J. T., & Boyer, M. A. (2000). World politics: International politics on the world stage, brief (3rd ed.). Dushkin/McGraw-Hill.
Dyfyniad Arddull ChicagoRourke, John T., and Mark A. Boyer. World Politics: International Politics on the World Stage, Brief. 3rd ed. [Guilford, Conn.]: Dushkin/McGraw-Hill, 2000.
Dyfyniad MLARourke, John T., and Mark A. Boyer. World Politics: International Politics on the World Stage, Brief. 3rd ed. Dushkin/McGraw-Hill, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.