The Mark Apple Rootstock. Journal of the American Pomological Society, [S. l.], v. 35, n. 2, p. 78–79, 1981. DOI: 10.71318/apom.1981.35.2.78. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/1452. Acesso em: 1 feb. 2026.