The Weatherspoon Plum in British Columbia. Journal of the American Pomological Society, [S. l.], v. 11, n. 3, p. 38–38, 1957. DOI: 10.71318/apom.1957.11.3.38. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/190. Acesso em: 12 dec. 2025.