Curle, A. (1948). The Excavation of the ’Wag’ or Prehistoric Cattle-fold at Forse, Caithness, and the Relation of ’Wags’ to Brochs, and implications arising therefrom. Proceedings of the Society of Antiquaries of Scotland, 80, 11-25. https://doi.org/10.9750/PSAS.080.11.25