COOK, Francis R.; NERO, Robert W. The Green Snake and the Red-Bellied Snake in Saskatchewan. Blue Jay, [S. l.], v. 19, n. 3, 1961. DOI: 10.29173/bluejay2509. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/2509. Acesso em: 28 mar. 2024.