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Guiley, Rosemary Ellen: Harper's Encyclopedia of Mystical and Paranormal Experience, New York: HarperCollins, 1991, pages 465-466

Robertson, Morgan and Stevenson, Ian, M.D.: The Wreck of the Titan: The Paranormal Experiences Connected with the Sinking of the Titanic. Cutchogue, NY: Buccaneer Bks, 1991.

Spence, Lewis: An Encyclopedia of Occultism, New York, Carol Publishing Group Edition, 1996, pages 329

Barrett, Deirdre, PhD .”The Committee Of Sleep”. New York: Crown Publishers, 2001

Quinn, Adriene. “Dreams of History That Came True”. Tacoma: Dream Research, 1987.

Reed, Henry, PhD. “Getting Help From Your Dreams”. Virginia Beach: Inner Vision Publishing, 1985.

Thurston, Mark. PhD. “Tonight’s Answers To Tomorrow’s Questions”. San Francisco: Harper & Row, 1988.