-, -. Anniversary meeting: 1 December 1975. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 106, p. 237–242, 1977. DOI: 10.9750/PSAS.106.237.242. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/10638. Acesso em: 4 may. 2024.