TURNQUIST, M. M. Mr. Sparrow Versus Downy. Blue Jay, [S. l.], v. 12, n. 2, 1954. DOI: 10.29173/bluejay1460. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/1460. Acesso em: 5 may. 2024.