Richmond, Ian A, James McIntyre, J A Stanfield, Eric Birley, and Arthur Raistrick. “The Agricolan Fort at Fendoch”. Proceedings of the Society of Antiquaries of Scotland 73 (November 30, 1939): 110–154. Accessed December 9, 2024. https://journals.socantscot.org/index.php/psas/article/view/8107.