| E.B. Fryde |
The De Moneta of Nicholas Oresme and English Mint Documents. (Nelson's Mediaeval Texts), by Charles Johnson |
|
27/1, p. 34 |
| R.J. BRICKSTOCK |
Jeffrey P. Mass, The J. P. Mass Collection of English Short Cross Coins, 1180-1247, Sylloge of Coins of the British Isles 56 |
|
72/1, p. 124 |
| J.A.W. Bennett |
Medieval England: a new edition rewritten and revised, by Austin Lane Poole |
|
31/3, p. 224 |