WATT, William G T. Notice of the Broch known as Burwick or Borwick, in the Township of Yescanabee and Parish of Sandwick, Orkney. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 16, p. 442–450, 1882. DOI: 10.9750/PSAS.016.442.450. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6029. Acesso em: 3 may. 2024.