Literatura Frank, Frederick, „Introduction” in The Castle of Otranto. Haggerty, George. „Queering Horace Walpole”. SEL 1500-1900 46.3 (2006): 543-562 Hiller, Bevis. Who’s Horry now?. The Spectator, September 14, 1996 Langford, Paul. „Walpole, Horatio, fourth earl of Orford (1717–1797)”, Oxford Dictionary of National Biography, Oxford University Press, 2004 Legouis, Emile. A History of English Literature. Trans. Louis Cazamian. New York: The Macmillan Company, 1957 Mowl, Timothy. Horace Walpole: The Great Outsider. London: Murray, 1998. Norton, Rictor (ed.), „A Sapphick Epistle, 1778”, Homosexuality in Eighteenth-Century England: A Sourcebook. 1 December 1999, updated 23 February 2003 Watt, James. „Gothic” in The Cambridge Companion to English Literature 1740–1830 ed. Thomas Keymer and Jon Mee, s. 119–138. Cambridge: Cambridge University Press, 2004. Verberckmoes, Johan (2007). Geschiedenis van de Britse eilanden. Leuven: Uitgeverij Acco Leuven.
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