Piggott, Stuart, and Cecily Margaret Piggott. “Field Work in Colonsay and Islay, 1944-45”. Proceedings of the Society of Antiquaries of Scotland 80 (November 30, 1948): 83–103. Accessed November 25, 2024. https://journals.socantscot.org/index.php/psas/article/view/8251.