(1975). Copper, lead, zinc, nickel. Japan Mining Industry Association.
Cita Chicago (17th ed.)Copper, Lead, Zinc, Nickel. [Tokyo]: Japan Mining Industry Association, 1975.
Cita MLA (9th ed.)Copper, Lead, Zinc, Nickel. Japan Mining Industry Association, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.