THOMS, Alexander. St Regulus Tower, St Andrews - Where did the Stones with which it was built come from?. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 47, p. 426–428, 1913. DOI: 10.9750/PSAS.047.426.428. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7299. Acesso em: 18 apr. 2024.