Death of Mr. G. M. Ryan, F. L. S. Indian Forester, [S. l.], v. 58, n. 4, p. 236–238, 1932. DOI: 10.36808/if/1932/v58i4/20100. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/20100. Acesso em: 25 dec. 2025.