SASKATCHEWAN NATURAL HISTORY SOCIETY. Nature’s Schoolhouse [Boys’ & Girls Section]. Blue Jay, [S. l.], v. 14, n. 3, 1956. DOI: 10.29173/bluejay2049. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/2049. Acesso em: 13 dec. 2025.