BLACKMORE, John. The Challenge Of World Food Needs. Journal of Agricultural Education, [S. l.], v. 6, n. 1, p. 25–27, 1965. DOI: 10.5032/jaatea.1965.01025. Disponível em: https://jae-online.org/index.php/jae/article/view/986. Acesso em: 14 sep. 2024.