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Passport to Magonia
From Folklore to Flying Saucers
Foreign-language editions

First French edition Paris: Denoël, 1972 Trade paperback	Spanish hardcover edition Barcelona: Plaza y Janes, 1972	Second French edition Paris: Robert Laffont, 1978
Canadian edition Montréal: Robert Laffont, 1978	French mass paperback edition Paris: J'Ai Lu, 1974	Spanish mass paperback Barcelona: Plaza y Janes, 1972