The Online Books Page

Books by Robert G Bottge:

Books in the extended shelves:

• Bottge, Robert G.: Comparative asbestos mining and processing costs - Alaska versus Yukon Territory (Bureau of Mines, 1975) (page images at HathiTrust)
• Bottge, Robert G.: Comparative porphyry copper mining and processing costs - Alaska and Arizona. (U.S. Bureau of Mines, 1974), also by United States Bureau of Mines (page images at HathiTrust)
• Bottge, Robert G.: Estimated costs to produce copper at Kennicott, Alaska (U.S. Dept. of the Interior, Bureau of Mines :, 1973), also by Raymond P. Maloney (page images at HathiTrust)
• Bottge, Robert G: Geothermal energy: economic potential of three sites in Alaska (U.S. Dept. of the Interior, Bureau of Mines :, 1975), also by Jimmie C. Rosenbruch and United States Bureau of Mines (page images at HathiTrust)

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