-, -. Anniversary meeting: 30 November 1963. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 96, p. 375–379, 1965. DOI: 10.9750/PSAS.096.375.379. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/10622. Acesso em: 5 may. 2024.