[1]
“Notice of the Brochs or Large Round Towers of Orkney, with Plans, Sections, and Drawings, and Tables of Measurements of Orkney and Shetland Brochs”, arch-scot, vol. 5, pp. 71–94, Nov. 1891, Accessed: Dec. 09, 2025. [Online]. Available: https://journals.socantscot.org/index.php/arch-scot/article/view/313