Macdonald, George, Alexander Park, and Thomas Ross. “The Roman Forts on the Bar Hill, Dumbartonshire, Excavated by Mr Alexander Whitelaw of Gartshore, F.S.A. Scot: With a Note on the Architectural Remains”. Proceedings of the Society of Antiquaries of Scotland 40 (November 30, 1906): 403–546. Accessed November 3, 2024. https://journals.socantscot.org/index.php/psas/article/view/7068.