United Verde Copper Company, Barker, L. M., & Kuzell, C. R. (1930). Milling methods and costs at concentrator of United Verde Copper Company, Clarkdale, Ariz. [publisher not identified].
Chicago Style (17th ed.) CitationUnited Verde Copper Company, L. M. Barker, and C. R. Kuzell. Milling Methods and Costs at Concentrator of United Verde Copper Company, Clarkdale, Ariz. Washington, D.C.: [publisher not identified], 1930.
MLA (9th ed.) CitationUnited Verde Copper Company, et al. Milling Methods and Costs at Concentrator of United Verde Copper Company, Clarkdale, Ariz. [publisher not identified], 1930.
Warning: These citations may not always be 100% accurate.