APA (7th ed.) Zitazioa

Ray, J. L. (1990). Global politics (4th ed.). Houghton Mifflin Co..

Chicago Style (17th ed.) Zitazioa

Ray, James Lee. Global Politics. 4th ed. Boston: Houghton Mifflin Co., 1990.

MLA (9th ed.) Zitazioa

Ray, James Lee. Global Politics. 4th ed. Houghton Mifflin Co., 1990.