ロバート・ゴードン・ワッソン
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Wasson, R. Gordon, Stella Kramrisch, Jonathan Ott, and Carl A. P. Ruck. Persephone's Quest: Entheogens and the Origins of Religion. New Haven: Yale University Press, 1986.
Wasson, R. Gordon. The Last Meal of the Buddha. Journal of the American Oriental Society, Vol. 102, No. 4. (Oct.