DE VRIES, Bernard. Records of Saskatchewan Fern Species in the Qu’Applelle Valley. Blue Jay, [S. l.], v. 19, n. 1, 1961. DOI: 10.29173/bluejay2404. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/2404. Acesso em: 6 apr. 2025.