HILLISON, John. Congressional District Schools: Forerunner of Federally Supported Vocational Agriculture. Journal of Agricultural Education, [S. l.], v. 30, n. 4, p. 7–13, 1989. DOI: 10.5032/jae.1989.04007. Disponível em: https://jae-online.org/index.php/jae/article/view/2235. Acesso em: 15 jul. 2026.