APA (7th ed.) Citation

Magma Copper Company, McNabb, J. C., & Rose, J. H. (1930). Milling methods and costs at concentrator of Magma Copper Company, Superior, Ariz. [publisher not identified].

Chicago Style (17th ed.) Citation

Magma Copper Company, J. C. McNabb, and J. H. Rose. Milling Methods and Costs at Concentrator of Magma Copper Company, Superior, Ariz. Washington, D.C.: [publisher not identified], 1930.

MLA (9th ed.) Citation

Magma Copper Company, et al. Milling Methods and Costs at Concentrator of Magma Copper Company, Superior, Ariz. [publisher not identified], 1930.