Wasson, Robert Gordon. Soma : divine mushroom of immortality / Robert Gordon Wasson. - New York : Harcourt Brace Jovanovich, c 1968. - xiii, 380 p. : ill. ; 30 cm. - Ethno-mycological studiens, no. 1. . Includes Index. 314 314 Subjects--Topical Terms: Soma. Mushrooms -- Religious aspects. Dewey Class. No.: 589.222 / W288s