Grant, W., and J. Callander. “Further Burials at Blows, Deerness, Orkney. With Notes on the Pottery Found There and on the Bronze Age Pottery of Orkney and Shetland”. Proceedings of the Society of Antiquaries of Scotland, Vol. 67, Nov. 1933, pp. 343-5, http://journals.socantscot.org/index.php/psas/article/view/7887.