FIELD, Harry; CUNNINGHAM, Stephen. Preparing for Occupations in Agricultural Mechanization. Journal of Agricultural Systems, Technology, and Management, [S. l.], v. 2, n. 2, p. 7–11, 1987. Disponível em: https://jastm.org/index.php/jastm/article/view/11877. Acesso em: 23 feb. 2025.