CHRISTISON, Philip. Bannockburn, 23rd and 24th June, 1314. A Study in Military History. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 90, p. 170–179, 1959. DOI: 10.9750/PSAS.090.170.179. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8526. Acesso em: 7 may. 2024.