CAMPBELL, Ian. Sir Howard Colvin. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 138, p. 1–5, 2009. DOI: 10.9750/PSAS.138.1.5. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9714. Acesso em: 22 jul. 2024.