APA (7th ed.) Zitazioa
Cohen, S. B. (1998). The Columbia gazetteer of the world. Columbia University Press.
Chicago Style (17th ed.) Zitazioa
Cohen, Saul Bernard. The Columbia Gazetteer of the World. New York: Columbia University Press, 1998.
MLA (9th ed.) Zitazioa
Cohen, Saul Bernard. The Columbia Gazetteer of the World. Columbia University Press, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.