-, -. Anniversary meeting: 30 November 1976. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 107, p. 342–348, 1978. DOI: 10.9750/PSAS.107.342.348. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/10639. Acesso em: 3 may. 2024.