Giraldi Cambrensis Opera. Vol. IV: Speculum ecclesiæ. De vita Galfridi archiepiscopi Eboracensis: sive certamina Galfridi Eboracensis archiepiscopi. Edited by J. S. Brewer, London, Longman and Co., etc. (Rerum Britannicarum Medii Ævi Scriptores = Chronicles and Memorials of Great Britain and Ireland During the Middle Ages), 1873. [IA]