Bibliography
See the full digitisation of each manuscript:
Toronto, Thomas Fisher Rare Book Library, MS 01114 'Brevarium Romanum' <https://fishercollections.library.utoronto.ca/islandora/object/fisher2%3AF4089>
London, British Library, Add MS 18851 'The Isabella Breviary' <https://www.bl.uk/manuscripts/FullDisplay.aspx?ref=Add_MS_18851>
Oxford, Bodleian Library, MS Laud Misc. 468 <https://digital.bodleian.ox.ac.uk/objects/a51302e3-5939-45a8-9825-76f462848134/surfaces/b20f0034-0e6a-4d3d-a08f-908388690363/>
Bibliography
Cattin, Giulio and F. Alberto Gallo, Music of the Middle Ages (Cambridge: Cambridge University Press, 1984)
Elliot, Michael and M.A. Jacobs, ‘Dating a Fifteenth-Century Franciscan Breviary: Thomas Fisher MS 1269’, The Halcyon 40 (2007), 12-13
Harper, John, The Forms and Orders of Western Liturgy from the Tenth to the Eighteenth Century (Oxford: Clarendon Press, 1991)
Hughes, Andrew, Medieval Manuscripts for Mass and Office: A Guide to Their Organization and Terminology (Toronto: University of Toronto Press, 1995)