REID, Alan. The Churchyards of Prestonpans. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 42, p. 18–39, 1908. DOI: 10.9750/PSAS.042.18.39. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7120. Acesso em: 24 apr. 2024.