BERTRAND, A.; CIRAD-CTFT. New forestry policies in Sahel areas. Les Cahiers de la Recherche Développement, [S. l.], n. 8, p. 25–34, 1985. Disponível em: https://revues.cirad.fr/index.php/crd/article/view/36461. Acesso em: 19 may. 2024.