CHRISTISON, David; ANDERSON, Joseph. On the recently excavated Fort on Castle Law, Abernethy, Perthshire: With Notes on Finds. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 33, p. 13–33, 1899. DOI: 10.9750/PSAS.033.13.33. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6723. Acesso em: 8 dec. 2024.