Haueter, M. W. (1969). Ronald Duncan: The metaphysical content of his plays. Rebel Press.
Chicago-referens (17:e uppl.)Haueter, Max Walter. Ronald Duncan: The Metaphysical Content of His Plays. London: Rebel Press, 1969.
MLA-referens (8:e uppl.)Haueter, Max Walter. Ronald Duncan: The Metaphysical Content of His Plays. Rebel Press, 1969.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.