LOCKHART, D. G. The Land Surveyor In Northern Ireland Before The Coming Of The Ordnance Survey Circa 1840. Irish Geography, [S. l.], v. 11, n. 1, p. 102–109, 2016. DOI: 10.55650/igj.1978.829. Disponível em: https://irishgeography.ie/index.php/irishgeography/article/view/829. Acesso em: 1 may. 2024.