Skjærvø, P. O. (2011). The spirit of Zoroastrianism. Yale University Press.
Dyfyniad Arddull ChicagoSkjærvø, Prods Oktor. The Spirit of Zoroastrianism. New Haven: Yale University Press, 2011.
Dyfyniad MLASkjærvø, Prods Oktor. The Spirit of Zoroastrianism. Yale University Press, 2011.
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