SWITZER, Frank C. Observations on Power Toboggans. Blue Jay, [S. l.], v. 31, n. 4, 1970. DOI: 10.29173/bluejay3796. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3796. Acesso em: 22 nov. 2024.