HOLM JAKOBSEN, B. I.G. Simmons: Earth, air and water - resources and environment in the late 20th century. Geografisk Tidsskrift, [S. l.], v. 93, 1993. Disponível em: https://tidsskrift.dk/geografisktidsskrift/article/view/42235. Acesso em: 13 dec. 2024.