Great Britain. Public Record Office. (2010). Calendar of the Patent Rolls preserved in the Public Record Office (Searchable text ed.). TannerRitchie Pub. in collaboration with the Library and Information Services of the University of St. Andrews.
Cita Chicago Style (17a ed.)Great Britain. Public Record Office. Calendar of the Patent Rolls Preserved in the Public Record Office. Searchable text ed. Burlington, Ont.: TannerRitchie Pub. in collaboration with the Library and Information Services of the University of St. Andrews, 2010.
Cita MLA (8a ed.)Great Britain. Public Record Office. Calendar of the Patent Rolls Preserved in the Public Record Office. Searchable text ed. TannerRitchie Pub. in collaboration with the Library and Information Services of the University of St. Andrews, 2010.