APA aipamena

Boyd, A. (1991). An atlas of world affairs (9th ed.). Routledge.

Chicago Style aipamena

Boyd, Andrew. An Atlas of World Affairs. 9th ed. London: Routledge, 1991.

MLA aipamena

Boyd, Andrew. An Atlas of World Affairs. 9th ed. Routledge, 1991.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.