HUTCHESON, Alexander. Notice of the Wallace Stones, Longforgan. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 34, p. 476–482, 1900. DOI: 10.9750/PSAS.034.476.482. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6784. Acesso em: 26 apr. 2024.