CORCORAN, John X W P; LUNT, Dorothy A; DENSTON, C B. Excavation of three chambered cairns at Loch Calder, Caithness. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 98, p. 1–75, 1967. DOI: 10.9750/PSAS.098.1.75. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8674. Acesso em: 26 apr. 2024.