APA aipamena

GETIS, A. (2017). Introduction to geography. New Age International Publishers.

Chicago Style aipamena

GETIS, Arthur. Introduction to Geography. New Age International Publishers, 2017.

MLA aipamena

GETIS, Arthur. Introduction to Geography. New Age International Publishers, 2017.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.