Paton, Victor A Noel. “Notes on a Vitrified Fort at ’An-Cnap,’ Sannox, Arran, and Vitrified Stones at Mid Sannox, Arran, and at Pennymore, Furnace, Loch Fyne”. Proceedings of the Society of Antiquaries of Scotland 62 (November 30, 1928): 239–245. Accessed November 22, 2024. https://journals.socantscot.org/index.php/psas/article/view/7727.