LOCKHART, William. Notice of an Agreement between a Vassal and an Ecclesiastic in Regard to Subjects on the Water of Leith in the Year 1226. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 23, p. 254–257, 1889. DOI: 10.9750/PSAS.023.254.257. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6333. Acesso em: 29 apr. 2024.