MACKAY, Angus. Notes on a Slab with Incised Crescentic Design, Stone Mould for casting Spear-heads, a Cup-marked Stone, Holy-water Stoup, and other Antiquities in Strathnaver, Sutherlandshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 40, p. 128–133, 1906. DOI: 10.9750/PSAS.040.128.133. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7052. Acesso em: 4 may. 2024.