-, -. Anniversary meeting: 30 November 1961. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 94, p. 337–340, 1963. DOI: 10.9750/PSAS.094.337.340. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/10619. Acesso em: 26 may. 2024.