Anderson, J. (1875). 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, 508–513. https://doi.org/10.9750/PSAS.011.508.513