PIGGOTT, Stuart; POWELL, T G E; ANDERSON, F W; ORR, M Y. The excavation of three neolithic chambered tombs in Galloway, 1949. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 83, p. 103–161, 1951. DOI: 10.9750/PSAS.083.103.161. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8335. Acesso em: 23 apr. 2024.