-, -. Anniversary meeting: 30 November 1978. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 109, p. 390–404, 1980. DOI: 10.9750/PSAS.109.390.404. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/10641. Acesso em: 7 may. 2024.