REENBERG, A. Henry Nol Le Houérou: The grazing land ecosystems of the African Sahel. (Ecological studies, 75). Geografisk Tidsskrift, [S. l.], v. 89, 1989. Disponível em: https://tidsskrift.dk/geografisktidsskrift/article/view/44755. Acesso em: 20 dec. 2024.