Skene, James, and James Bowd. “Notice of Two Ancient Stone Collars Dug up Near the Parallel Roads of Glen Roy, in Possession of the Late Mr Byres, of Tonley”. Archaeologia Scotica 3 (November 30, 1832): 299. Accessed March 29, 2024. http://journals.socantscot.org/index.php/arch-scot/article/view/242.