REDWOOD, Stewart D. The River Ythan Navigation, Aberdeenshire: The only natural inland waterway in northern Scotland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 153, p. 281–297, 2024. DOI: 10.9750/PSAS.153.1402. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/10799. Acesso em: 12 dec. 2024.