Safety practices in California gold dredging

著者
    • Ash, S. H. (Simon Harry), b. 1889
書誌事項

Safety practices in California gold dredging

by S.H. Ash

(Bulletin / United States Department of Commerce, Bureau of Mines, 352)

U.S. G.P.O., 1932

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注記

At head of title: U.S. Department of Commerce. R.P. Lamont, secretary. Bureau of Mines. Scott Turner, director

Includes bibliographical references

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  • Bulletin

    United States Department of Commerce, Bureau of Mines

    U.S. Govt. Print. Off

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