Scott, Laurence G, and Charles S T Calder. “Notes on a Chambered Cairn and a Working Gallery, on the Beorgs of Uyea, Northmaven, Shetland”. Proceedings of the Society of Antiquaries of Scotland 86 (November 30, 1954): 171–177. Accessed November 25, 2024. https://journals.socantscot.org/index.php/psas/article/view/8414.