BREITUNG, August J. Violets of Saskatchewans (with illustrated drawing). Blue Jay, [S. l.], v. 10, n. 3, 1952. DOI: 10.29173/bluejay1206. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/1206. Acesso em: 18 apr. 2024.