Falk, D. V. (1958). Eugene O'Neill and the tragic tension: An interpretive study of the plays. Rutgers University Press.
Chicago-referens (17:e uppl.)Falk, Doris V. Eugene O'Neill and the Tragic Tension: An Interpretive Study of the Plays. New Brunswick, N.J: Rutgers University Press, 1958.
MLA-referens (9:e uppl.)Falk, Doris V. Eugene O'Neill and the Tragic Tension: An Interpretive Study of the Plays. Rutgers University Press, 1958.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.