BETTS, N. L. An index of summers in Northern Ireland. Irish Geography, [S. l.], v. 17, n. 1, p. 84–94, 2016. DOI: 10.55650/igj.1984.739. Disponível em: https://irishgeography.ie/index.php/irishgeography/article/view/739. Acesso em: 27 apr. 2024.