@article{Ritchie_Ritchie_Denston_1975, title={Excavation of a barrow at Queenafjold, Twatt, Orkney}, volume={105}, url={http://journals.socantscot.org/index.php/psas/article/view/8872}, DOI={10.9750/PSAS.105.33.40}, journal={Proceedings of the Society of Antiquaries of Scotland}, author={Ritchie, Graham and Ritchie, Anna and Denston, C B}, year={1975}, month={Nov.}, pages={33-40} }