LAING, David. On the Present State of the Ruins of Iona, and their Preservation: In a Letter to the Hon. Lord Murray, Vice-President. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 2, p. 7–12, 1856. DOI: 10.9750/PSAS.002.7.12. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/4382. Acesso em: 26 apr. 2024.