HARROP, D. The Saskatoon Lapidary and Mineral Club. Blue Jay, [S. l.], v. 20, n. 4, 1962. DOI: 10.29173/bluejay2576. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/2576. Acesso em: 22 nov. 2024.