LAING, David. A few remarks on the portraits of Sir William Wallace. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 2, p. 308–313, 1859. DOI: 10.9750/PSAS.002.308.313. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/4438. Acesso em: 30 apr. 2024.