Excavation at Iona Abbey, 1976. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 108, p. 228–253, 1979. DOI: 10.9750/PSAS.108.228.253. Disponível em: https://soas-test.journals.ed.ac.uk/index.php/psas/article/view/8971. Acesso em: 1 oct. 2025.