Skjærvø, P. O. (2011). The spirit of Zoroastrianism. Yale University Press.
Chicago Style aipamenaSkjærvø, Prods Oktor. The Spirit of Zoroastrianism. New Haven: Yale University Press, 2011.
MLA aipamenaSkjærvø, Prods Oktor. The Spirit of Zoroastrianism. Yale University Press, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.