Childe, V. G., Wells, L. H. and Zeuner, F. E. (1954) “Re-Excavation of the Chambered Cairn of Quoyness, Sanday, on behalf of the Ministry of Works, 1951-2: With notes on the human skeletal remains and sheep’s skull”, Proceedings of the Society of Antiquaries of Scotland, 86, pp. 121–139. doi: 10.9750/PSAS.086.121.139.