LACAILLE, A D. The Small Flint Knives of Orkney. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 69, p. 251–262, 1935. DOI: 10.9750/PSAS.069.251.262. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7941. Acesso em: 20 apr. 2024.