DRUMMOND, James. Notes made during a wandering in the West Highlands; with Remarks upon the Style of Art of some Monumental Stones at Iona, and in other Localities. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 8, p. 117–120, 1869. DOI: 10.9750/PSAS.008.117.120. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5407. Acesso em: 3 may. 2024.