Pears for Massachusetts. Journal of the American Pomological Society, [S. l.], v. 18, n. 3, p. 47–47, 1964. DOI: 10.71318/apom.1964.18.3.47. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/632. Acesso em: 2 feb. 2026.