Johnston, Daniel A, S Boardman, S Carter, A Crone, B Finlayson, R Pelling, R Ritchie, et al. “Biggar Common, 1987-93: An Early Prehistoric Funerary and Domestic Landscape in Clydesdale, South Lanarkshire”. Proceedings of the Society of Antiquaries of Scotland 127 (November 30, 1998): 185–253. Accessed May 3, 2024. https://journals.socantscot.org/index.php/psas/article/view/9964.