Callander, J Graham, James E Cree, and James Ritchie. “Preliminary Report on Caves Containing Palaeolithic Relics, Near Inchnadamph, Sutherland”. Proceedings of the Society of Antiquaries of Scotland 61 (November 30, 1927): 169–172. Accessed November 21, 2024. https://journals.socantscot.org/index.php/psas/article/view/7697.