Curle, James. “Notes on Two Brochs Recently Discovered at Bow, Midlothian, and Torwoodlee, Selkirkshire”. Proceedings of the Society of Antiquaries of Scotland 26 (November 30, 1892): 68–84. Accessed November 24, 2024. https://journals.socantscot.org/index.php/psas/article/view/6472.