Ithaca, New York, U.S.A. Northeastern Univ Pr. 1991. (ISBN: 1-55553-094-X). Hard Cover. Publisher: Northeastern University Press, 1991, V.Good, HB, ISBN: 1-55553-094-X. Very Good.
Scarborough, ON, Canada, An Aspen Publication. 1977. (ISBN: 0-913654-30-2). Hard Cover. Publisher: An Aspen Publication, 1977, Good, Hard Cover, ISBN: 0-913654-30-2. Good.
Wheaton, Illinois, U.S.A. Theosophical Pub House. 1967. (ISBN: 0835604020). Soft Cover. PB/Gd. condition/312 pages - There is a mystery beyond the capacities and powers of the mind. (K1564HR7). Good.