PINEL, H. W.; BIDDELL, J. R. Calgary Bluebird Trail - 1977. Blue Jay, [S. l.], v. 36, n. 1, 1978. DOI: 10.29173/bluejay4525. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4525. Acesso em: 3 may. 2024.