Irvine, James T. “Notes on Sepulchral Cairns Discovered by the Blowing of Sand on the Sands of Bracon; And on the Sculptured Stone Discovered at South Garth, Island of Yell, Shetland”. Proceedings of the Society of Antiquaries of Scotland 32 (November 30, 1898): 171–174. Accessed November 25, 2024. https://journals.socantscot.org/index.php/psas/article/view/6700.