Ellmann, Richard, Yeats: The Man and the Masks, Norton, 1978.

Freud, Sigmund, The Interpretation of Dreams, edited by James Strachey, Avon, 1983.

Leavis, F. R., "The Situation at the End of the War," in New Bearings in English Poetry: A Study of the Contemporary Situation, AMS Press Inc., 1978, pp. 27-74.

Merritt, Henry, "Rising and Going: The 'Nature' of Yeats's 'The Lake Isle of Innisfree,' " in Journal of the English Association, Vol. 47, No. 188, Summer, 1998.

Thoreau, Henry David, Walden: An Annotated Edition, edited by Walter Harding, Houghton Mifflin, 1995.

Tindall, William York, W. B. Yeats, Columbia University Press, 1966, p. 31.

Wilson, Edmund, "W. B. Yeats," in Alex's Castle: A Study in the Imaginative Literature of 1870-1930, Charles Scribner's, 1931, pp. 26-63.

Yeats, W. B., The Autobiography of William Butler Yeats, Collier, 1967.