SMITH, John Alex. Notes of oblong and horse-shoe shaped flint implements and Arrow-heads found in Kincardineshire. Also Note of the Use of a Stone as a Knife, in the Island of Lewis in 1829. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 11, p. 575–580, 1876. DOI: 10.9750/PSAS.011.575.580. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5772. Acesso em: 25 apr. 2024.