Cannon, J. (1987). The great powers (2nd ed.). Longman.
Chicago Style aipamenaCannon, Jim. The Great Powers. 2nd ed. London: Longman, 1987.
MLA aipamenaCannon, Jim. The Great Powers. 2nd ed. Longman, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.