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Author/Creator
- United States. Congress. House88
- United States. Department of the Interior. Bureau of Mines (1934- )86
- Pehrson, Elmer W.10
- Hughes, H. Herbert, (Harry Herbert)7
- Shore, F.M.7
- Adams, W.W.6
- Backus, H.6
- Bennit, H.L.6
- Bowles, Oliver6
- Coons, Altha Titsworth6
- Davis, H.W., (Hubert)6
- Dunlop, J.P.6
- Gerry, C.N.6
- Henderson, Charles W.6
- Hopkins, G. R. (George Randolph), 1898-6
- Johnson, Bertrand L., (Bertrand Leroy)6
- Luff, Paul6
- Merrill, Charles White6
- Meyer, H.M.6
- Miller, T.H.6