JOASS, James; SIMPSON, J Y. Two Days’ Diggings in Sutherland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 5, p. 242–247, 1865. DOI: 10.9750/PSAS.005.242.247. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5131. Acesso em: 25 apr. 2024.