The Excavation of two Circular Enclosures at Dalnaglar, Perthshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 95, p. 134–158, 1964. DOI: 10.9750/PSAS.095.134.158. Disponível em: https://soas-test.journals.ed.ac.uk/index.php/psas/article/view/8625. Acesso em: 31 oct. 2025.