CLOUSTON, J Storer. Some Further Early Orkney Armorials. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 53, p. 180–195, 1919. DOI: 10.9750/PSAS.053.180.195. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7458. Acesso em: 2 may. 2024.