Apple Production in the Western United States. Journal of the American Pomological Society, [S. l.], v. 33, n. 1, p. 7–11, 1979. DOI: 10.71318/apom.1979.33.1.7. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/1374. Acesso em: 11 feb. 2026.