Não informado. (2019). Canadian Mining Journal's Reference Manual & Buyer's Guide. National Business Publications.
Chicago-Zitierstil (17. Ausg.)Não informado. Canadian Mining Journal's Reference Manual & Buyer's Guide. Montreal, Canada: National Business Publications, 2019.
MLA-Zitierstil (8. Ausg.)Não informado. Canadian Mining Journal's Reference Manual & Buyer's Guide. National Business Publications, 2019.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.