Letter on the Superstitions of the Highlands, addressed to the Right Honourable James Drummond, of Perth. Archaeologia Scotica, [S. l.], v. 3, p. 223–229, 1832. Disponível em: https://soas-test.journals.ed.ac.uk/index.php/arch-scot/article/view/223. Acesso em: 30 sep. 2025.