3Lowell, Robert. "On 'Skunk Hour'. " Robert Lowell, A Collection of Critical Essays. Ed. Thomas Parkinson. Englewood Cliffs: Prentice-Hall, Inc. , 1968.
4McClatchy, J. D. , ed. Anne Sexton: The Artist and Her Critics. Bloomington: gadiana UP,1978.
5Reik, Theodor. The Compulsion to Confess. New York: Farrar, Straus and Cudahy, 1959.
6Rosenblatt, John. Sylvia Plath : The Poetry of Initiation. Chapel Hill, U of North Carolina P, 1979.
7Rosenthal, M.L. The New Poets : American and British Poetry since World War Two. New York: Oxford UP, 1967.
8Spender, Stephen. The Making of a Poem. London: Hamish Hamilton, 1955.
9Spender, Stephen. "Warnings from the Grave. " Neva Republic 18 Jun. 1966.
10Alvarez, A. The Savage God: A Study of Suicide. New York: Random House, 1972.