APA (7th ed.) Zitazioa
Etersen, O. V. (1967). Genthelvite from the Ilimaussaq alkaline intrusion, South Greenland.
Chicago Style (17th ed.) Zitazioa
Etersen, Ole V. Genthelvite from the Ilimaussaq Alkaline Intrusion, South Greenland. 1967.
MLA (9th ed.) Zitazioa
Etersen, Ole V. Genthelvite from the Ilimaussaq Alkaline Intrusion, South Greenland. 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.