Writings of G.I. Gurdjieff
 
Beelzebub's Tales to His Grandson. Aurora, Oregon: Two Rivers Press, 1993. (A facsimile of the original 1950 edition published by Harcourt Brace and reissued by E. P. Dutton in 1964.)
 
Beelzebub's Tales to His Grandson. New York and London: Viking Arkana, 1992. (A revised translation of the original.)

Meetings with Remarkable Men. New York: E. P. Dutton, 1963; New York and London: Arkana, 1985.

Views from the Real World: Early Talks in Moscow, Essentuki, Tiflis, Berlin, London, Paris, New York and Chicago As Recollected by His Pupils. New York: E. P. Dutton, 1973; London: Viking Arkana, 1984.
 

Writings by P.D. Ouspensky (related to the teaching of G.I. Gurdjieff)

In Search of the Miraculous: Fragments of an Unknown Teaching. New York: Harcourt Brace and World., 1949.

The Psychology of Man's Possible Evolution. New York: Knopf. 1954.
 

Other related


Exchanges Within: Questions from Gurdjieff Group Meetings with John Pentland in California, 1955-1984. John Pentland. Continuum Publishing Company, 1997.

Gurdjieff; Essays & Reflections on the Man & His Teachings. Jacob Needleman, edt., Continuum Publishing Company, 1997. 

The Taste for Things That Are True: Essays & Talks by a Pupil of G. I. Gurdjieff. Henri Tracol. Element Books, Incorporated, 1994.

Toward Awakening: An Approach to the Teaching Left by Gurdjieff. Jean Vaysse. Viking Penguin, 1991.