An Account of St Columba’s Abbey, Inchcolm, accompanied with Plans, &c. Archaeologia Scotica, [S. l.], v. 5, p. 45–70, 1891. Disponível em: https://soas-test.journals.ed.ac.uk/index.php/arch-scot/article/view/311. Acesso em: 1 oct. 2025.