CALLANDER, J Graham. A Long Cairn near Gourdon, Kincardineshire, and a Bronze Age Cairn containing a Short Cist and an Urn, at Idvies, Forfarshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 58, p. 23–27, 1924. DOI: 10.9750/PSAS.058.23.27. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7590. Acesso em: 24 apr. 2024.