WHITTINGTON, Graeme. A sub-peat dyke on Shurton Hill, Mainland, Shetland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 109, p. 30–35, 1980. DOI: 10.9750/PSAS.109.30.35. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8992. Acesso em: 13 may. 2024.