COLES, Frederick R. The "Stone Circle" at Holywood, Dumfriesshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 28, p. 84–90, 1894. DOI: 10.9750/PSAS.028.84.90. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6544. Acesso em: 30 apr. 2024.