APA (7th ed.) Citation

Hardwick, W. R., Sierakoski, J., & United States. Bureau of Mines. (1957). Mining methods and practices at the Johnson Camp Copper-Zinc Mine, Coronado Copper & Zinc Co., Cochise County, Arizona. U.S. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Hardwick, W. R., Joe Sierakoski, and United States. Bureau of Mines. Mining Methods and Practices At the Johnson Camp Copper-Zinc Mine, Coronado Copper & Zinc Co., Cochise County, Arizona. [Washington, D.C.?]: U.S. Dept. of the Interior, Bureau of Mines, 1957.

MLA (8th ed.) Citation

Hardwick, W. R., et al. Mining Methods and Practices At the Johnson Camp Copper-Zinc Mine, Coronado Copper & Zinc Co., Cochise County, Arizona. U.S. Dept. of the Interior, Bureau of Mines, 1957.