PENDLEBURY, George B. Additional Records of the Bull Snake from Alberta. Blue Jay, [S. l.], v. 31, n. 1, 1970. DOI: 10.29173/bluejay4050. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4050. Acesso em: 16 apr. 2025.