TROTTER, Eugene. Teaching Agriculture And Natural Resources At The Elementary Level: The Challenge Is There!. Journal of Agricultural Education, [S. l.], v. 18, n. 2, p. 15–18, 1977. DOI: 10.5032/jaatea.1977.02015. Disponível em: https://jae-online.org/index.php/jae/article/view/1740. Acesso em: 13 jul. 2024.