Robertson, Anne S. “Notes: (3) An Arrowhead of Rhyolitic Ash from Linlithgow, West Lothian”. Proceedings of the Society of Antiquaries of Scotland 77 (November 30, 1943): 187–188. Accessed November 8, 2024. https://journals.socantscot.org/index.php/psas/article/view/8202.