KEVAN, Peter G. Good Ruts, Bad Ruts. Blue Jay, [S. l.], v. 30, n. 4, 1972. DOI: 10.29173/bluejay3492. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3492. Acesso em: 4 apr. 2025.