"The Home Book of Quotations." Binghamton: Dodd, Mead, and Company, 1967 pp395

Hyde, Margaret. "Mysteries of the Mind." New York: McGraw-Hill Book Company, 1972.

Haskell, Robert E. "Dreams and Dreaming." Academic American Encyclopedia. Vers.6 Grolier, 1996.

"Information for Students." Dream Reasearch <http://www.psch.ucsc.edu/dreams/students.html> (March 13,2000)

"Lucid Dreaming Frequently Asked Questions Answered by the Lucidity Institute." Lucidity Institute. <http://www.lucidity.com/LucidDReamingFAQ2.html#cd> March 17,2000)

Moffet, Martha. "Hidden Meanings of Your Dreams." Boca Raton: 2000.