DAVIDSON, J L. The collection of antiquarian information for the early Ordnance Survey maps of Scotland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 116, p. 11–16, 1987. DOI: 10.9750/PSAS.116.11.16. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9254. Acesso em: 22 jul. 2024.