KNOWLES, W J. On the Mounting of Leaf-shaped Arrowheads of Flint. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 43, p. 278–283, 1909. DOI: 10.9750/PSAS.043.278.283. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7150. Acesso em: 25 apr. 2024.