Hugo, J. (1950). Nature and the supernatural: A defense of the evangelic ideal. J. Hugo.
Lua i Stíl Chicago (17ú heag.)Hugo, John. Nature and the Supernatural: A Defense of the Evangelic Ideal. [United States: J. Hugo, 1950.
Lua MLA (8ú heag.)Hugo, John. Nature and the Supernatural: A Defense of the Evangelic Ideal. J. Hugo, 1950.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.