ALEXANDER, James E. Opening of the Fairy Knowe of Pendreich, Bridge of Allan. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 7, p. 519–523, 1867. DOI: 10.9750/PSAS.007.519.523. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5365. Acesso em: 30 apr. 2024.