APA aipamena

De Blij, H. J. (1997). Geography: Realms, regions, and concepts. New York: J. Wiley.

Chicago Style aipamena

De Blij, Harm J. Geography: Realms, Regions, and Concepts. New York: J. Wiley, 1997.

MLA aipamena

De Blij, Harm J. Geography: Realms, Regions, and Concepts. New York: J. Wiley, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.