1.
Bryce TH. The so-called heel-shaped cairns of Shetland, with remarks on the chambered tombs of Orkney and Shetland. PSAS [Internet]. 1940 Nov. 30 [cited 2024 Nov. 22];74:23-36. Available from: https://journals.socantscot.org/index.php/psas/article/view/8128