Alcock, Leslie, Elizabeth Alcock, and Sally Foster. “Reconnaissance Excavations on Early Historic Fortifications and Other Royal Sites in Scotland, 1974-84:1, Excavations Near St Abb’s Head, Berwickshire, 1980”. Proceedings of the Society of Antiquaries of Scotland 116 (November 30, 1987): 255-279. Accessed February 8, 2023. http://journals.socantscot.org/index.php/psas/article/view/9270.