O’KELLEY, Jr.; FULLER, Gerald R.; DILLON, Roy D. Book Reviews. Journal of Agricultural Education, [S. l.], v. 12, n. 3, p. 27–30, 1971. DOI: 10.5032/jaatea.1971.03027. Disponível em: https://jae-online.org/index.php/jae/article/view/2247. Acesso em: 23 nov. 2024.