Gorman, M. (2010). Stairway to the stars: Sufism, Gurdjieff, and the inner tradition of mankind. Aeon.
Lua i Stíl Chicago (17ú heag.)Gorman, Max. Stairway to the Stars: Sufism, Gurdjieff, and the Inner Tradition of Mankind. London: Aeon, 2010.
Lua MLA (9ú heag.)Gorman, Max. Stairway to the Stars: Sufism, Gurdjieff, and the Inner Tradition of Mankind. Aeon, 2010.
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