Books by W. R. Hardwick:
Books in the extended shelves:
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Hardwick, W. R. (William R.): Block-caving copper mining methods and costs at the Miami mine, Miami Copper Company, Gila County, Ariz. (U.S. Dept. of the Interior, Bureau of Mines, 1965) (page images at HathiTrust)- Hardwick, W. R. (William R.): Block-caving mining methods and costs Bagdad Mine, Bagdad Copper Corp. Yavapai County, Ariz. (U.S. Dept. of the Interior, Bureau of Mines, 1959) (page images at HathiTrust)
- Hardwick, W. R. (William R.): Fracturing a deposit with nuclear explosives and recovering copper by the in-situ leaching method (U.S. Dept. of the Interior, Bureau of Mines, 1967), also by U.S. Atomic Energy Commission (page images at HathiTrust)
- Hardwick, W. R. (William R.): Fracturing hard rock with nuclear explosives and extraction of ore by a modified block-caving method (U.S. Dept. of Interior, Bureau of Mines, 1970), also by U.S. Atomic Energy Commission. San Francisco Operations Office and United States Bureau of Mines (page images at HathiTrust)
- Hardwick, W. R. (William R.): Open-pit copper mining and concentrating methods and costs, Silver Bell Unit, American Smelting and Refining Co., Pima County, Ariz. (U.S. Bureau of Mines, 1963), also by United States Bureau of Mines and American Smelting and Refining Company (page images at HathiTrust)
- Hardwick, W. R. (William R.): Open-pit copper mining methods and practices at the Chino Mines Division, Kennecott Copper Corp., Grant County, N. Mex. (U.S. Bureau of Mines, 1958), also by Kennecott Copper Corporation (page images at HathiTrust)
- Hardwick, W. R. (William R.): Open-pit copper mining methods and practices, Copper Cities Division, Miami Copper Co., Gila County, Ariz. (U.S. Bureau of Mines, 1960), also by M. M. Stover and Miami Copper Company (page images at HathiTrust)
- Hardwick, W. R. (William R.): Open-pit copper mining methods at New Cornelia Branch, Phelps Dodge Corp., Pima County, Ariz. (U.S. Dept. of the Interior, Bureau of Mines, 1960), also by Phelps Dodge Corporation (page images at HathiTrust)
Find more by W. R. Hardwick at your library, or elsewhere.