GOUDIE, Gilbert. On the Horizontal Water Mills of Shetland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 20, p. 257–297, 1886. DOI: 10.9750/PSAS.020.257.297. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6202. Acesso em: 30 apr. 2024.