Giraldi Cambrensis Opera. Vol. I: De rebus a se gestis, libri III. Invectionum libellus. Symbolum electorum. Edited by J. S. Brewer, London, Longman, Green, Longman, and Roberts, 1861 (Rerum Britannicarum Medii Ævi Scriptores = Chronicles and Memorials of Great Britain and Ireland During the Middle Ages). [IA]