Anderson, Joseph. “Notice of a Flint Arrow-Head in the Shaft, Found in a Moss at Fyvie, Aberdeenshire, With Notes in Illustration of the Manufacture of Arrow-Shafts With Flint Tools”. Proceedings of the Society of Antiquaries of Scotland 11 (November 30, 1875): 508–513. Accessed April 26, 2024. https://journals.socantscot.org/index.php/psas/article/view/5763.