MACKAY, William. Notice of Two Sculptured Stones in Glen Urquhart. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 20, p. 358–360, 1886. DOI: 10.9750/PSAS.020.358.360. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6210. Acesso em: 2 may. 2024.