BELCHER, Margaret. “Signs of Spring,” Harley Ranson’s Experiences of Spring Migration in the Tyvan District 1916–1934. Blue Jay, [S. l.], v. 23, n. 1, 1965. DOI: 10.29173/bluejay3162. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/3162. Acesso em: 6 may. 2024.