[1]
Irvine, J.T. 1887. Notes on some Prehistoric Burial-Places and Standing Stones in the Island of Yell, Shetland. (With Illustrations.). Proceedings of the Society of Antiquaries of Scotland. 21, (Nov. 1887), 215–219. DOI:https://doi.org/10.9750/PSAS.021.215.219.