JOWSEY, J.R. In Memoriam: Warren Hjertaas, 1921-1999. Blue Jay, [S. l.], v. 57, n. 4, 1999. DOI: 10.29173/bluejay5649. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/5649. Acesso em: 22 jul. 2024.