Nature of Thornless Blackberry Sports. Journal of the American Pomological Society, [S. l.], v. 10, n. 1, p. 14–15, 1955. DOI: 10.71318/apom.1955.10.1.14. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/112. Acesso em: 10 feb. 2026.