Izdavač: Sphere Books Ltd., London 1973;

Izdavač: Bantam Books, New York 1977;

Izdavač: University of Pennsylvania Press, Philadelphia 1971;

Izdavač: Hamish Hamilton, London 1938; 1. izd.

Izdavač: Crossroad, New York 1985; World Spirituality: An Encyclopedic History of the Religious Quest: knj. 16

Izdavač: Crossroad, New York 1986; World Spirituality: An Encyclopedic History of the Religious Quest: knj. 13

Izdavač: Abacus, London 1976;

Izdavač: Rider and Company, London 1974;

Izdavač: Macmillan and Company Limited, St. Martin's Press, London, New York 1968; Macmillan Student Editions

Izdavač: Rivington, Percival and Co., London 1895;

Izdavač: Ktav Publishing House, Inc., New York 1973;

Izdavač: Peter Owen, London 1971;