CRAMOND, Wm. Some Notes on Road Bills, with reference to a Collection of them, in three volumes, now exhibited; and Notes on the Casting from Abernethy Iron Works, now presented to the Museum. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 31, p. 224–227, 1897. DOI: 10.9750/PSAS.031.224.227. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6664. Acesso em: 8 may. 2024.