MANN, Ludovic MacLellan. The Carved Stone Balls of Scotland: A New Theory as to their Use. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 48, p. 407–420, 1914. DOI: 10.9750/PSAS.048.407.420. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7334. Acesso em: 24 nov. 2024.