CALDER, Charles S T; CLARKE, A S; SPEED, J G; HENSHALL, Audrey S. Report on the Discovery of Numerous Stone Age House-Sites in Shetland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 89, p. 340–397, 1958. DOI: 10.9750/PSAS.089.340.397. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8498. Acesso em: 16 apr. 2024.