DUNS, Professor. Note on ’Trotter Roofing.’. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 14, p. 180–181, 1880. DOI: 10.9750/PSAS.014.180.181. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5915. Acesso em: 20 apr. 2024.