March 9, 1972: Natural and Supernatural (letter)
January 27, 1972: Muhammad Muckraked
Mohammed by Maxime Rodinson, translated by Anne Carter
April 22, 1971: Muhammad Speaks
Classical Islam: A History 600 A.D.-1258 A.D. by G.E. von Grunebaum, translated by Katherine Watson
The Cambridge History of Islam, Volume I: The Central Islamic Lands, Volume II: The Further Islamic Lands; Islamic Society and Civilization edited by P.M. Holt, edited by Ann K.S. Lambton, edited by Bernard Lewis
A History of Islamic Philosophy by Majid Fakhry
The Fihrist of al-Nadim: A Tenth-Century Survey of Muslim Culture translated by Bayard Dodge
Arabic and Persian Poems in English by Omar S. Pound
October 22, 1970: The Mysterious East (letter)
July 2, 1970: Mystic - Making
Creative Imagination in the Sufism of Ibn cArabi by Henry Corbin, translated by Ralph Manheim
The Way of the Sufi by Idries Shah
Tales of the Dervishes by Idries Shah