WEDGEWOOD, J. A. A Tribute to George F. Ledingham. Blue Jay, [S. l.], v. 31, n. 1, 1970. DOI: 10.29173/bluejay4035. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4035. Acesso em: 3 jul. 2024.