SIMPSON, W Douglas. The Castles of Dunnideer and Wardhouse, in the Garioch, Aberdeenshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 69, p. 460–471, 1935. DOI: 10.9750/PSAS.069.460.471. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7955. Acesso em: 27 apr. 2024.