HARMS, Vernon L. August Julius Breitung, 1913–1987, Noted Saskatchewan Amateur Botanist. Blue Jay, [S. l.], v. 46, n. 3, 1988. DOI: 10.29173/bluejay5028. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/5028. Acesso em: 28 mar. 2024.