Pergamon Institute. Journal of the American Pomological Society, [S. l.], v. 14, n. 4, p. 64–64, 1960. DOI: 10.71318/apom.1960.14.4.64. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/373. Acesso em: 15 dec. 2025.