Pear Breeding in Ohio. Journal of the American Pomological Society, [S. l.], v. 21, n. 4, p. 81–81, 1967. DOI: 10.71318/apom.1967.21.4.81. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/897. Acesso em: 15 dec. 2025.