PATERSON, J Wilson. The Broch of Mousa: a Survey by H.M. Office of Works. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 56, p. 172–183, 1922. DOI: 10.9750/PSAS.056.172.183. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7542. Acesso em: 7 may. 2024.