MAXWELL, Herbert Eustace. Notice of Further Excavation of St Ninian’s Cave, Parish of Glasserton, Wigtownshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 21, p. 137–141, 1887. DOI: 10.9750/PSAS.021.137.141. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6229. Acesso em: 23 apr. 2024.