WILSON, John; WILSON, Elise M. Excavation at Black Jack Castle, Craig, Angus. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 98, p. 249–253, 1967. DOI: 10.9750/PSAS.098.249.253. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8683. Acesso em: 16 apr. 2024.