FOTHERGILL, George A. George Foulis (1569-1633) and the Carved Stones of Ravelston. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 44, p. 76–89, 1910. DOI: 10.9750/PSAS.044.76.89. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7173. Acesso em: 3 may. 2024.