Paul Howe Shepard: A Man Dedicated to Fruit, Fun, and Service. Journal of the American Pomological Society, [S. l.], v. 72, n. 1, p. 29–39, 2018. DOI: 10.71318/apom.2018.72.1.29. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/2983. Acesso em: 8 dec. 2025.