Mercer, John. “Stone Tools from a Washing-Limit Deposit of the Highest Post-Glacial Transgression, Lealt Bay, Isle of Jura”. Proceedings of the Society of Antiquaries of Scotland 100 (November 30, 1969): 1–46. Accessed April 26, 2024. https://journals.socantscot.org/index.php/psas/article/view/8721.