The Instability of Sport Apple Varieties. Journal of the American Pomological Society, [S. l.], v. 16, n. 2, p. 29–31, 1962. DOI: 10.71318/apom.1962.16.2.29. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/494. Acesso em: 12 feb. 2026.