ALLEN, John Romilly. Notice of Three Cup-Marked Stones, and the Discovery of an Urn, in Perthshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 15, p. 82–92, 1881. DOI: 10.9750/PSAS.015.82.92. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5954. Acesso em: 29 apr. 2024.