Growing Grapes in Iowa. Journal of the American Pomological Society, [S. l.], v. 4, n. 2, p. 57–57, 1949. DOI: 10.71318/apom.1949.4.2.57. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/1627. Acesso em: 13 dec. 2025.