The Tuna or Prickly Pear in California. Journal of the American Pomological Society, [S. l.], v. 6, n. 2, p. 26–43, 1952. DOI: 10.71318/apom.1952.6.2.26. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/2605. Acesso em: 1 feb. 2026.