CLARKE, David V. Four Roman bells from Scotland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 103, p. 228–231, 1974. DOI: 10.9750/PSAS.103.228.231. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8799. Acesso em: 23 may. 2024.