DUFF-DUNBAR, Louisa. A Fort at Skitten, Wick, Caithness, with Notes on Flint Implements from the same County. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 69, p. 108–117, 1935. DOI: 10.9750/PSAS.069.108.117. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7935. Acesso em: 29 apr. 2024.