Blackberry Production and Cultivars in North America East of the Rocky Mountains. Journal of the American Pomological Society, [S. l.], v. 46, n. 4, p. 217–222, 1992. DOI: 10.71318/apom.1992.46.4.217. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/1987. Acesso em: 9 dec. 2025.