-, -. Appendix: On ancient sculpturings of cups and concentric rings, &c. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 6, p. i-vi, 1866. DOI: 10.9750/PSAS.006.appendix.prelims. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5225. Acesso em: 19 apr. 2024.