(en) J. W. Ocker, The New York Grimpendium : A Guide to Macabre and Ghastly Sites in New York State, The Countryman Press, , 352 p. (ISBN978-1-58157-772-3 et 1-58157-772-9, lire en ligne), p. 199-200
(en) Harvey Kubernik, Hollywood Shack Job : Rock Music in Film and on Your Screen, Albuquerque, University of New Mexico Press, , 401 p. (ISBN0-8263-3542-X, lire en ligne), p. 46
(en) Carrol Lee Fry, Cinema of the Occult : New Age, Satanism, Wicca, and Spiritualism in Film, Lehigh University Press, , 301 p. (ISBN978-0-934223-95-9 et 0-934223-95-5, lire en ligne), p. 116-117