The Jefferis Apple. Journal of the American Pomological Society, [S. l.], v. 4, n. 4, p. 103–105, 1949. DOI: 10.71318/apom.1949.4.4.103. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/1659. Acesso em: 7 feb. 2026.