SMITH, John Alex. On the use of the ’Mustard Cap and Bullet’ in the North of Scotland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 6, p. 255–258, 1865. DOI: 10.9750/PSAS.006.255.258. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5190. Acesso em: 25 apr. 2024.