APA (7th ed.) Zitazioa
(2016). Geo: Geography and Environment. Wiley.
Chicago Style (17th ed.) Zitazioa
Geo: Geography and Environment. Wiley, 2016.
MLA (9th ed.) Zitazioa
Geo: Geography and Environment. Wiley, 2016.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.