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Dyfyniad Arddull ChicagoVilling, Alexandra. Forgotten Empire: The World of Ancient Persia. Berkeley: University of California Press, 2005.
Dyfyniad MLAVilling, Alexandra. Forgotten Empire: The World of Ancient Persia. University of California Press, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.