‘Jonamac’, an Early Ripening ‘McIntosh’ Type Apple. Journal of the American Pomological Society, [S. l.], v. 28, n. 3, p. 62–63, 1974. DOI: 10.71318/apom.1974.28.3.62. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/1187. Acesso em: 9 dec. 2025.