Notes of the Opening of a Stone Circle at Craigmore in Strathfleet, Sutherlandshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 7, p. 473–475, 1867. DOI: 10.9750/PSAS.007.473.475. Disponível em: https://soas-test.journals.ed.ac.uk/index.php/psas/article/view/5359. Acesso em: 1 oct. 2025.