‘Norton’ and ‘Cynthiana—Premium’ Native Wine Grapes. Journal of the American Pomological Society, [S. l.], v. 45, n. 2, p. 66–69, 1991. DOI: 10.71318/apom.1991.45.2.66. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/1900. Acesso em: 4 may. 2026.