London: Arthur Humphreys, 1919. 8vo., pp.xxxii,275, uncut, quarter cloth with printed paper label to spine, blue paper-covered boards, t.e.g.; slight partial sunning to boards, light rubbing to boards, with light creasing and wear to paper covering at corners, else a very good copy. No dust-jacket.

Cambridge University Press, 2016. 8vo., pp.vi,441, black hardcover, gilt; fine, with author’s inscription to front free endpaper, in vg+ unclipped dust-jacket.

Manchester: Manchester University Press, 2002. 8vo., pp. vii,408, yellow hardcover, black lettering; very slight bruise to upper edge of front board, a fresh and near-fine copy in a very good+ unclipped dust-jacket.

London: Faber and Faber, 1942. 8vo., pp.249, burgundy hardcover, gilt, uncut; yellowing to leaves, a few spots of foxing to fore-edge of text block,neat ink date and signature to front free endpaper, otherwise internally clean, light rubbing to extremities, a very good copy in a vg unclipped dust-jacket, toning and sunned, light rubbing and chipping to extremities.

Pennsylvania: Pennsylvania State University Press, 1994. 4to., pp.224, paperback; a very good copy.

Oxford University Press, 2010. 8vo., pp.viii,381, navy hardcover, gilt; ownership nameplate to front paste-down endpaper, a near-fine copy, in very good unclipped dust-jacket, which has 2.5cm closed tear to head of fold over upper joint, with scotch-tape reinforcement.

Oxford: Blackwell Publishers, for the Ecclesiastical History Society, 1993. 8vo., pp.xviii,497, blue hardback, gilt, colour frontispiece, b/w illustrations; ownership autograph to front free endpaper, else a fine, fresh copy, in very good unclipped dust-jacket.

Oxford University Press, 2007. 8vo., pp.xiii,600, navy hardcover, gilt; neat ownership nameplate to front paste-down endpaper, a very good copy indeed, in vg unclipped dust-jacket.

Aldershot: Ashgate, 2004. 8vo., pp.xv,232, black hardcover, gilt; ownership autograph to front free endpaper, a very good, fresh copy in a good+ unclipped dust-jacket, which is lightly shelfworn, with rubbing at light chipping at the edges.

London: published for The British Academy by Oxford University Press, 2016. 8vo., pp.vii,366, navy cloth, gilt; from the library of D.E. Luscombe, with ownership autograph to front free endpaper, publisher’s barcode sticker to rear board, a fine copy. No dust-jacket.

Philadelphia: The American Philosophical Society, 1972. 4to., pp.104, green cloth, gilt; evidence of removed label to front paste-down endpaper, front free endpaper cropped at upper and lower corners, rubbing to extremities, internally clean and otherwise very good, a good(+) copy overall.

New York: The Franciscan Institute, St. Bonaventure University, 1983. 8vo., pp.xxxii,710, grey paperback wrappers; neat ownership nameplate to half title, scotch-tape reinforcement along fore-edge of front wrapper, internally fresh, a near-fine copy.

New York: Octagon Books, 1990. Reprint, 8vo., pp.xiv,476, red cloth, gilt, 2 b/w plates; ownership inscription to front free endpaper, sellotape marking to free endpapers, otherwise clean, a very good copy. No dust-jacket.

Leicester University Press, 2000. 8vo., pp.xiv,237, glazed hardcover, b/w illustrations; neat ownership nameplate to front paste-down endpaper, very mild shelfwear, a fresh and near-fine copy. No dust-jacket, as issued.

York: York Medieval Press, in association with The Boydell Press, 1997. 8vo., pp.x,244, blue hardcover, gilt, with printed paper label to front board, 3 b/w plates; with editors’ gift inscription to front free endpaper, a fine copy.

Brepols, 1998. 8vo.,pp. ix,517, paperback; ownership autograph to front free endpaper, light creasing to spine and extremities, a very good copy.

London: Routledge and Kegan Paul, 1964. Second impression, 8vo., pp.xv,131,44 (Appendix),8 (adverts), cloth, gilt, b/w frontispiece; light spotting to top edges, a very good copy indeed, in a very good+ fresh and complete dust-jacket.

Cambridge University Press, 2022. 8vo., pp.li,452, pictorial hardcover; very good indeed. No dust-jacket, as issued.

Oxford: Oxford University Press, 2011. 8vo.,pp. xii,180, pictorial hardcover, b/w figures and tables; a near-fine copy. No dust-jacket, as issued.

Cambridge University Press, 2014. 8vo., pp.xi,262, black hardcover, gilt; neat ownership nameplate to front paste-down endpaper, publisher’s ‘damaged’ stamp to title verso, else fine, in vg+ unclipped dust-jacket.