SMALL, Alan; COTTAM, M B; DUNBAR, John G. Souterrain and later structures at Northwaterbridge, Kincardineshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 105, p. 293–296, 1975. DOI: 10.9750/PSAS.105.293.296. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8891. Acesso em: 20 apr. 2024.