HADDOW, A J; HANNAY, D. A cairn on the Keills peninsula, N Knapdale, Argyll. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 104, p. 292–293, 1974. DOI: 10.9750/PSAS.104.292.293. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8829. Acesso em: 25 apr. 2024.