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by Oitto, Richard H.
[Washington] : U.S. Dept. of the Interior, Bureau of Mines : For sale by the Supt. of Docs., U.S. Govt. Print. Off., 1979
Subjects:
“...Mining engineering....”[Washington] : U.S. Dept. of the Interior, Bureau of Mines : For sale by the Supt. of Docs., U.S. Govt. Print. Off., 1979
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by Noble, Bruce J., 1958-
[Washington, D.C.] : U.S. Department of the Interior, National Park Service, Interagency Resources Division, National Register of Historic Places, 1992
Subjects:
“...Mining engineering United States Conservation and restoration....”[Washington, D.C.] : U.S. Department of the Interior, National Park Service, Interagency Resources Division, National Register of Historic Places, 1992
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Government Document
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