Plums in the Northwest. Journal of the American Pomological Society, [S. l.], v. 9, n. 4, p. 57–57, 1954. DOI: 10.71318/apom.1954.9.4.57. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/3220. Acesso em: 11 dec. 2025.