ECKFORD, R. On Certain Terrace Formations in the South of Scotland and on the English Side of the Border. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 62, p. 107–120, 1928. DOI: 10.9750/PSAS.062.107.120. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7739. Acesso em: 25 apr. 2024.