Ritchie A, Bramwell D, Collins GH, Dickson C, Evans JG, Henshall AS, et al. Excavation of a Neolithic farmstead at Knap of Howar, Papa Westray, Orkney. PSAS [Internet]. 1984 Nov. 30 [cited 2024 Apr. 18];113:40-121. Available from: https://journals.socantscot.org/index.php/psas/article/view/9119