WALSH, M. C. Current activities in the ordnance survey of Ireland. Irish Geography, [S. l.], v. 11, n. 1, p. 149–154, 2016. DOI: 10.55650/igj.1978.834. Disponível em: https://irishgeography.ie/index.php/irishgeography/article/view/834. Acesso em: 18 nov. 2024.