CALLANDER, J Graham. Three Food-Vessel Urns, a Cup-Marked Stone, and Other Objects discovered at Sheriffton, near Perth. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 52, p. 131–139, 1918. DOI: 10.9750/PSAS.052.131.139. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7446. Acesso em: 24 apr. 2024.