APA (7th ed.) Zitazioa
Skjærvø, P. O. (2011). The spirit of Zoroastrianism. Yale University Press.
Chicago Style (17th ed.) Zitazioa
Skjærvø, Prods O. The Spirit of Zoroastrianism. New Haven: Yale University Press, 2011.
MLA (9th ed.) Zitazioa
Skjærvø, Prods O. The Spirit of Zoroastrianism. Yale University Press, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.