RITCHIE, Anna. Painted pebbles in early Scotland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 104, p. 297–301, 1974. DOI: 10.9750/PSAS.104.297.301. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8832. Acesso em: 26 apr. 2024.