1.
Petrie G. 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 [Internet]. 1891 Nov. 30 [cited 2024 Apr. 25];5:71-94. Available from: https://journals.socantscot.org/index.php/arch-scot/article/view/313