RITCHIE, James. The Stone Circle at Broomend of Crichie, Aberdeenshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 54, p. 154–172, 1920. DOI: 10.9750/PSAS.054.154.172. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7485. Acesso em: 19 apr. 2024.