SMITH, John Alexander. Notes on some Stone Implements, &c., from Shetland, now presented to the Museum. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 17, p. 291–299, 1883. DOI: 10.9750/PSAS.017.291.299. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6062. Acesso em: 25 jun. 2024.