Hardy, T. D. (2013). Descriptive catalogue of materials relating to the history of Great Britain and Ireland: To the end of the reign of Henry VII (Searchable text edition.). TannerRitchie Publishing in collaboration with the Library and Information Services of the University of St. Andrews.
Chicago-referens (17:e uppl.)Hardy, Thomas Duffus. Descriptive Catalogue of Materials Relating to the History of Great Britain and Ireland: To the End of the Reign of Henry VII. Searchable text edition. Burlington, Ontario: TannerRitchie Publishing in collaboration with the Library and Information Services of the University of St. Andrews, 2013.
MLA-referens (9:e uppl.)Hardy, Thomas Duffus. Descriptive Catalogue of Materials Relating to the History of Great Britain and Ireland: To the End of the Reign of Henry VII. Searchable text edition. TannerRitchie Publishing in collaboration with the Library and Information Services of the University of St. Andrews, 2013.