HEDGES, John; HARKNESS, D D; JONES, R L; TASKER, C M K; MURPHY, P; CHAPLIN, R E; TREWIN, S H; SOFRANOFF, S. Excavation of two Orcadian burnt mounds at Liddle and Beaquoy. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 106, p. 39–98, 1977. DOI: 10.9750/PSAS.106.39.98. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8913. Acesso em: 26 apr. 2024.