Letters of the Kings of England. In two Volumes. Vol.I / now first collected from Royal Archives, and other authentic Sources, private as well as public. Edited, with an historical Introduction and Notes, by James Orchard Halliwell, ESQ., F.R.S., Hon. M.R.I.A, Hon. M.R.S.L., F.S.A, etc..    London : Henry Colburn, Publisher, Great Marlborough Street, 1848 . xxxv, 403 stran, 1 strana nečíslované obrazové přílohy

The presidential branch / John Hart.    New York :  Pergamon,  1987 . 253 s.