BARD, Fred G. Conservation In Action: A Similar Yorkton Project. Blue Jay, [S. l.], v. 12, n. 2, 1954. DOI: 10.29173/bluejay1474. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/1474. Acesso em: 3 may. 2024.