Ruby Apple, a Cross of Gallia Beauty and Starking. Journal of the American Pomological Society, [S. l.], v. 7, n. 1, p. 3–5, 1952. DOI: 10.71318/apom.1952.7.1.3. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/2894. Acesso em: 15 dec. 2025.