Anderson, Joseph. “Notes on the Excavation of ’Kenny’s Cairn,’ on the Hill of Bruan; Carn Righ, Year Yarhouse; the Warth Hill Cairn, Duncansbay; And Several Smaller Sepulchral Cairns in Caithness”. Proceedings of the Society of Antiquaries of Scotland 9 (November 30, 1871): 292–296. Accessed April 24, 2024. https://journals.socantscot.org/index.php/psas/article/view/5489.