Crawford, J., Cowie, T., Finlayson, B., Lane, A., Sheridan, A., & Braby, A. (1998). Archaeological collections from sandhill sites in the Isle of Coll, Argyll & Bute. Proceedings of the Society of Antiquaries of Scotland, 127, 467–511. https://doi.org/10.9750/PSAS.127.467.511