Richardson, James S. “A Thirteenth-Century Tile Kiln at North Berwick, East Lothian, and Scottish Mediaeval Ornamented Floor Tiles”. Proceedings of the Society of Antiquaries of Scotland 63 (November 30, 1929): 281–310. Accessed November 25, 2024. https://journals.socantscot.org/index.php/psas/article/view/7759.