LUBENIECKI, L.J. "The Spirit of the Pioneers". Blue Jay, [S. l.], v. 13, n. 2, 1955. DOI: 10.29173/bluejay1986. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/1986. Acesso em: 4 may. 2024.