Edmondston, T. 1872. Notes of some Recent Excavations in the Island of Unst, Shetland, and of the Collection of Stone Vessels, Implements, &c., thus obtained for the Society’s Museum. Proceedings of the Society of Antiquaries of Scotland. 9, (Nov. 1872), 283–287. DOI:https://doi.org/10.9750/PSAS.009.283.287.