Smith, J.A. 1869. Notice of Remains of the Rein-deer (Cervus tarandus) found in Ross-shire, Sutherland, and Caithness; with Notes of its occurrence throughout Scotland. Proceedings of the Society of Antiquaries of Scotland. 8, (Nov. 1869), 186–222. DOI:https://doi.org/10.9750/PSAS.008.186.222.