CORMACK, E. Cross-markings and cup-markings at Duncroisk, Glenlochay. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 84, p. 169–173, 1952. DOI: 10.9750/PSAS.084.169.173. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8363. Acesso em: 22 jul. 2024.