| Sylloge of coins of the British Isles, 21 : Coins in Yorkshire collections, The Yorkshire Museum, Leeds, The University of Leeds; pt. 1 : Coins from Northumbrian Mints, c.895-1279; pt. 2 : Ancient British Issues and later Coins from other English, Irish, and Scottish Mints to 1279 | Pirie, Elizabeth Jane Elphinstone | Monograph or Collective Volume | | 1975 |