Braden Copper Company. (1962). Libro del cobre. Braden Copper Company.
Cita Chicago (17th ed.)Braden Copper Company. Libro Del Cobre. Santiago: Braden Copper Company, 1962.
Cita MLA (9th ed.)Braden Copper Company. Libro Del Cobre. Braden Copper Company, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.