Red and Purple Raspberries... their Identification from Plant Primocanes. Journal of the American Pomological Society, [S. l.], v. 16, n. 1, p. 20–20, 1961. DOI: 10.71318/apom.1961.16.1.20a. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/475. Acesso em: 7 apr. 2026.