Buffam, Noelle (March 26, 2011). "Supernatural". The Script Lab. Retrieved August 10, 2023.
worldcat.org
search.worldcat.org
Clery, E. J. (1999). The Rise of Supernatural Fiction, 1762–1800 (1st pbk. ed.). Cambridge: Cambridge University Press. ISBN0-521-66458-6. OCLC41620634.
Varnado, S. L. (1987). Haunted Presence: The Numinous in Gothic Fiction. Tuscaloosa: University of Alabama Press. ISBN0-8173-0324-3. OCLC13823178.