APA aipamena

Getis,Arthur. (2008). Introduction to Geography. New York: Mc Graw-hill.

Chicago Style aipamena

Getis,Arthur. Introduction to Geography. New York: Mc Graw-hill, 2008.

MLA aipamena

Getis,Arthur. Introduction to Geography. New York: Mc Graw-hill, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.