STUART, John. Notice of Antiquities on the Isle of Eday, Orkney, recently examined by James Farrer, of Ingleborough. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 2, p. 154–158, 1858. DOI: 10.9750/PSAS.002.154.158. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/4409. Acesso em: 7 may. 2024.