MORRISON, Hew. Notices of the Discovery of a Stone Coffin and Fragment of a Celtic Cross at Lethnott, Forfarshire, and of a Bronze Celt at Durness, Sutherlandshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 19, p. 315–320, 1885. DOI: 10.9750/PSAS.019.315.320. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6156. Acesso em: 6 may. 2024.