-, -. Anniversary meeting: 30 November 1960. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 93, p. 260–262, 1962. DOI: 10.9750/PSAS.093.260.262. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/10618. Acesso em: 1 may. 2024.