MAXWELL, Gordon; ROBERTSON, Anne; MCKERRELL, Hugh. Excavations at the Roman fort of Crawford, Lanarkshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 104, p. 147–200, 1974. DOI: 10.9750/PSAS.104.147.200. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8815. Acesso em: 20 apr. 2024.