GIBB, Andrew. Some Suggestions as to Our Mural Antiquities. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 12, p. 192–198, 1877. DOI: 10.9750/PSAS.012.192.198. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5808. Acesso em: 19 apr. 2024.