-, -. Anniversary meeting: 30 November 1987. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 117, p. 369–374, 1988. DOI: 10.9750/PSAS.117.369.374. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/10666. Acesso em: 5 may. 2024.