Blackberry Varieties in Oregon. Journal of the American Pomological Society, [S. l.], v. 13, n. 2, p. 28–30, 1958. DOI: 10.71318/apom.1958.13.2.28. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/271. Acesso em: 30 sep. 2026.