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- 77607481%2F%2Fr86 contributor B3219457.
- 77607481%2F%2Fr86 contributor B3219458.
- 77607481%2F%2Fr86 created "1970]".
- 77607481%2F%2Fr86 date "1970".
- 77607481%2F%2Fr86 date "1970]".
- 77607481%2F%2Fr86 dateCopyrighted "1970]".
- 77607481%2F%2Fr86 description "Bibliography: p. 47-54.".
- 77607481%2F%2Fr86 extent "ii, 56 p.".
- 77607481%2F%2Fr86 isPartOf "Information circular (United States. Bureau of Mines) ; 8462.".
- 77607481%2F%2Fr86 isPartOf "United States. Bureau of Mines. Information circular ; 8462".
- 77607481%2F%2Fr86 issued "1970".
- 77607481%2F%2Fr86 issued "1970]".
- 77607481%2F%2Fr86 language "eng".
- 77607481%2F%2Fr86 publisher "[Washington] U.S. Bureau of Mines; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.,".
- 77607481%2F%2Fr86 subject "622/.08 s".
- 77607481%2F%2Fr86 subject "Gold dredging.".
- 77607481%2F%2Fr86 subject "Mine examination.".
- 77607481%2F%2Fr86 subject "TN295 .U4 no. 8462".
- 77607481%2F%2Fr86 title "Gold placer mining; placer evaluation and dredge selection, by C. M. Romanowitz, H. J. Bennett, and W. L. Dare.".
- 77607481%2F%2Fr86 type "text".