Oxford, 1997. Reprint, 8vo., pp.xv,513-1008, paperback; internally fresh, a very good, clean copy.

London: S.P.C.K. First edition, 8vo., pp.xviii,361, red cloth, gilt; from the library of Lord Habgood, former Archbishop of York, with small ownership inscription to front free endpaper, a very good, fresh copy, with light sunning to spine (gilt remains bright). No dust-jacket.

Cambridge: Deighton, Bell and Co. 8vo., pp. 63, dark green half calf, gilt, textured cloth boards; neat ink annotations to pp.5-7, as well as neatly inked notes to front free and rear paste-down endpapers, ‘from the Author’ handwritten to title page, toning to free endpapers, extremities rubbed, overall a very good copy.

London: The Merlin Press. First English edition,8vo., pp.285, black hardcover with silver lettering on the spine; foxing to top-edge, otherwise a very good copy in a very good unclipped dust-jacket which has a small chip to upper maargin of the front cover - approx. 7mm wide, now in protective cover.

Oxford: Clarendon Press, 1962. 8vo., pp.viii,761, blue cloth, gilt; from the library of D. Luscombe, with neat ownership inscription to front free endpaper, spotting to top edges, a very good copy, in unclipped dust-jacket, which is toned to spine, with foxing to margins, and one small closed tear to upper edge, good+.

New York/London: Columbia University Press, 1961. 8vo., pp.xiii,254, purple cloth, gilt, b/w frontispiece; from the library of D.E. Luscombe, with ownership autograph to front free endpaper, foxing to frontispiece, sunning to spine, light partial sunning to boards, a good, clean copy, in worn dust-jacket, lacking lower half of spine, with wear to edges.

Edingburgh: T&T Clark, 1936. First edition. 8vo., pp.xvi,575, black hardcover, gilt; lightly yellowed pages, occasional spots of foxing throughout, more pronounced foxing to edges of text-block, rubbing to boards, a few marks, else a very good copy, no dust-jacket.

Roma: Istituto Storico Domenicano, Santa Sabina. 8vo., pp.xl,519, uncut and largely unopened, grey printed wrappers (paperback), b/w illustrations; ownership inscription to half title, light creasing to spine, otherwise a very good, fresh copy.

London: Condor Books/Souvenir Press. First UK edition, 8vo., pp.xiv,110, grey hardcover lettered in black; foxing to top edges, else clean and very good, in vg unclipped dust-jacket.

Leiden: Brill, 2017. 8vo.,pp. xxx,496, pictorial hardcover, b/w figures; ownership bookplate to front paste down endpaper, lightly bumped to head and foot of spine, a very good copy. No dust-jacket.

Woodbridge: Boydell & Brewer Ltd, 1998. Reprint, 8vo., pp.li,572, brown hardcover, gilt, b/w frontispiece; very slight foxing to top edge, light rubbing and soiling to boards, slight bruising to extremities, a very good copy. No dust-jacket.

London: Cambridge University Press, 1951. 8vo. pp.vii,190, garnet cloth; ex libris Bernard Hamilton, with ownership autograph to front free endpaper, a very good copy, in a very good dust-jacket which has light surface soil and toning to spine.

Cambridge: Cambridge University Press, 2015. 8vo.,pp. xxiv,264, hardcover, gilt, b/w frontispiece; ownership bookplate to front paste down endpaper, red ink stamp marked as ‘Damaged’ to publication page, a very good copy, in a very good unclipped pictorial dust-jacket, which clear adhesive tape to upper corners and to head of spine and rear upper margin.

York: University of York, 1995. 8vo., pp.26, pamphlet, pictorial paper wrappers; light toning to margins, very slightly rubbed, a very good copy.

London: SCM Press, 1991. 8vo., pp, xxii,494, black hardcover, gilt, ownership autograph to front paste-down endpaper, boards lightly knocked to edges, otherwise a very good, clean copy in a very good unclipped dust-jacket, which is lightly sunned to spine, and now in a clear plastic protective cover.

London: Geoffrey Bles, 1960. First edition, 8vo.,pp. 159, hardcover, red lettering; ownership inscription to front paste down endpaper and ownership autograph to front free endpaper, off setting to endpapers, toning and foxing to edges of text block, with very light foxing to title page and margins, light toning to edges of boards, otherwise a very good copy, in a very good unclipped dust-jacket, which is rubbed to extremities, toning to verso and lightly toned and foxed to spine and edges.

New York: The Franciscan Institute, St Bonaventure University, 1994. 8vo.,pp. xii,264, paperback, b/w maps to rear; ownership bookplate to front paste down endpaper and ownership autograph to half title page, a very good copy.

Leiden/Boston: Brill, 2010. 8vo., pp.348, hardcover, four b/w illustrations; lightly rubbed, slight sunning to spine, else a very good copy indeed.

Leuven: Leuven University Press, 1991. Large 8vo., pp.478, uncut and unopened, paperback (academic wrappers); slight marking to pale wrappers, a fresh and otherwise fine copy - unused.

Cambridge: D.S. Brewer, 2007. 8vo., pp.xii,211, blue hardcover, gilt, with printed paper title label to front board, b/w plates; neat ownership nameplate to front paste-down endpaper, a fresh and near-fine copy, in simple homemade dust-jacket.