MORGAN, W. B.; MOSS, R. P. Farming, forest and savanna in western Nigeria. ERDKUNDE, [S. l.], v. 24, n. 1, p. 71–80, 1970. DOI: 10.3112/erdkunde.1970.01.06. Disponível em: https://journals-test.ulb.uni-bonn.de/index.php/erdkunde/article/view/1605. Acesso em: 7 oct. 2024.