A Classification of Hardy North American PrunusCultivars and Native Species Based on Hardiness Zones. Journal of the American Pomological Society, [S. l.], v. 31, n. 3, p. 62–70, 1977. DOI: 10.71318/apom.1977.31.3.62. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/1334. Acesso em: 9 dec. 2025.