Alcock, L., Alcock, E., & Foster, S. (1987). 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, 255-279. Retrieved from http://journals.socantscot.org/index.php/psas/article/view/9270