-, -. Anniversary meeting: 1 December 1969. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 101, p. 303–307, 1971. DOI: 10.9750/PSAS.101.303.307. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/10630. Acesso em: 7 may. 2024.