Roy E. Gibson a Man With Vision and Courage. Journal of the American Pomological Society, [S. l.], v. 10, n. 2, p. 25–26, 1955. DOI: 10.71318/apom.1955.10.2.25. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/122. Acesso em: 11 dec. 2025.