Princeton: Princeton University Press, 1980. 8vo.,pp. ix,225, beige cloth, with green cloth spine and silver lettering; foxing to beige cloth boards, light foxing to upper edge of text block, a very good copy. No dust-jacket.

Leiden: E.J. Brill, 2004. 8vo., pp.xiii,251, pictorial hardcover, 2 b/w plates; a few small inked line-markings to margins of Introduction, from the library of Bernard Hamilton, although unsigned, otherwise clean and near-fine.

Milano: Arnoldo Mondadori, 2003. Second impression, 12mo., blue leather, top edges blue, ribbon bookmark, colour plates; from the library of D.E. Luscombe, with small ownership autograph to front free endpaper, a fine, fresh copy, in near-fine pictorial card sleeve.

Ontario: Pontifical Institute of Mediaeval Studies, 2009. 8vo., pp.xvi,289, pictorial hardcover, b/w frontispiece, 17 b/w illustrations; neat ownership nameplate to front paste-down endpaper, a very good copy indeed. No dust-jacket, as issued.

London & Berkley: University of California Press, 1999. Large 8vo., pp.xvi,241, red cloth, gilt, b/w illustrations; very slight foxing to top edge, a near fine copy, in an unclipped pictorial dust-jacket which is slightly rubbed to extremities, else very good indeed.

London: Gerald Duckworth & Co, 1996. 8vo.,pp. viii,184, hardcover, gilt, b/w plates; a very good copy, in a very good unclipped pictorial dust-jacket, which is sunned to spine and to rear extremities

London: Methuen & Co. Ltd, 1961. Second edition, 8vo., pp.255, green cloth, gilt; neat ownership inscription to front free endpaper and to title, slight rubbing to extremities, a very good copy, in unclipped dust-jacket, partially toned, with light waterstaining to front upper margin, light chipping to edges and 3cm closed tear to spine, else very good.

London: Kegan Paul, Trench, Trubner & Co. Ltd, 1902. 8vo., pp.xv,105, tan hardcover, gilt; ownership plates to front endpapers, toning to endpapers and lightly throughout, edges toned, slight rubbing to extremities and very slight soiling to boards, otherwise very good.

New Haven/London: Yale University Press, 1996. 8vo., pp.xiv,234, paperback; a fresh and near-fine copy.

Basingstoke: Palgrave Macmillan, 2008. 8vo., pp.ix,384, pictorial hardcover; slight bruise to head of spine, a fresh and near-fine copy, without dust-jacket (as issued).

Woodbridge: Boydell Press, 1995. 8vo,. pp.xxvii,160, brown hardcover, gilt; light rubbing to extremities, spine very lightly bruised, very slight sunning to front board and very slight sticker residue to rear board, a very good copy indeed.

Oxford: J.H. Parker, 1848. Three volumes, 8vo., pp.xvi,344;xi,308;vii,344, uncut, blindstamped purple cloth, gilt; spines uniformly toned, partial sunning to boards, with mottling to front board of Volume III., ink-splash to front board of Volume I, rubbing to extremities, with splitting to cloth at head of joints of Volumes I and II, internally clean, a good set.

Oxford: Oxford University Press, 2017. 8vo., pp.cxi,,400, navy hardcover, gilt, 10 b/w illustrations; a near fine fresh copy in a near fine unclipped dust-jacket.

London: Continuum, 2010. 8vo., pp.(iv),154, printed hardcover; a fine, fresh copy. No dust-jacket, as issued.

Chicago: The University of Chicago Press, 1987. 8vo.,pp. ix,220, green cloth, gilt; a very good copy, in a very good unclipped dust-jacket, which is rubbed to extremities, with a small ink stain to foot of spine.

Turnhout: Brepols, 2013. 8vo., pp. 369, paperback; from the library of D.E. Luscombe, ownership inscription to front free endpaper, internally fresh and clean, a few marks and very light rubbing to wrappers, else a very good copy indeed.

Oxford: Oxford University Press, 2009. 8vo.,pp. xiii,290, paperback; light soiling to edges of text block, otherwise a near-fine copy.

Turnhout: Brepols, 1998. 8vo., pp.xxvii,299, pictorial hardcover; a fine copy.

Bristol: Thoemmes Press, 1998. 8vo.,pp. ix,224, paperback; small stain to front free endpaper, otherwise clean and very good.

Princeton University Press, 1978. 8vo., pp.xii,215, brown cloth with stamped title label to spine, gilt; very good indeed, in very good unclipped dust-jacket, which is lightly creased/chipped to headband, and now in a protective cover.