DRUMMOND, James. Notes on Ancient shields and Highland Targets, one of the latter having embossed upon it the Cognisance of the Lord of the Isles. Archaeologia Scotica, [S. l.], v. 5, p. 213–224, 1891. Disponível em: https://journals.socantscot.org/index.php/arch-scot/article/view/317. Acesso em: 26 apr. 2024.