1Sheaffer,Lewis. O' Neill: Son and Artist [M]. Boston:Little, Brown and Co., 1973. 372.
2Richard F.Moorton. The Author as Oedipus in Mourning Becomes Electra and Long Day's Journey into Night[A]. ed. Richard F. Moorton. in Eugene O' Neill' s Century: Centennial Views on America' s Foremost Tragic Dramatist [C]. New York: Greenwood Press, 1991.
3Freud, Sigmund. Creative Writers and Dya- Dreaming[ A]. ed. David,Lodge. in 20th Century Literary Criticism [ C]. Longman Group Limited,1983.41.
4Eugene O'Neill. A Touch of the Poet [M]. London: Butler and Tanner LTD, 1957. 52.
5Eugene O'Neill. More Stately Mansions [Z]. London: Yale University Press, 1979.
6Martha Gilman Bower. Eugence O'Neill's Unfinished Threnody and Process of Invention in Four Cycle Plays [ M ]. Lewiston: The Edwin Mellen Press, 1992.