Freud, Sigmund. The Future of an Illusion. Translated and edited by James Strachey. New York: W. W.Norton & Co. 1989.

Gay, Peter. "Sigmund Freud: A Brief Life." In The Future of an
, by Sigmund Freud. New York: W. W. Norton & Co. 1989.

Gleitman, Henry. Basic Psychology. New York: W. W. Norton & Co. 1990.

Jones, Ernest. The Life and Work of Sigmund Freud. Edited by Lionel Trilling and Steven Marcus. Basic Books, 1961.

Lieber, Robert M. and Spiegler, Michael D. Personality. Pacific Grove, California: Brooks/Cole Publishing Co. 1990.

Wollheim, Richard. Sigmund Freud. New York: 1981.

Last modified 1998