compiled in Mineral Section, Bureau of Foreign and Domestic Commerce in collaboration with the Bureau of Mines

United States Department of Commerce, Bureau of Foreign and Domestic Commerce [1926] Trade information bulletin no. 442

Available at 2 libraries

by E.A. Holbrook, Thomas Fraser

Government Printing Office 1925 Bulletin / United States Department of the Interior, Bureau of Mines 234

Available at 1 libraries

by B.M. O'Harra

G.P.O. 1925 Technical paper / Department of the Interior, Bureau of Mines 341

Available at 1 libraries

by J.J. Jakosky

G.P.O. 1924 Technical paper / Department of the Interior, Bureau of Mines 351

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Federal Specifications Board

G.P.O. 1924 Rev. [ed.] Technical paper / Department of the Interior, Bureau of Mines 323A . U.S. Government standard specification ; no. 2c

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by Martin J. Gavin

Government Printinf Office 1924 Bulletin / United States Department of the Interior, Bureau of Mines 210

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G.P.O. 1923 Technical paper / Department of the Interior, Bureau of Mines 344

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by G.W. Jones, L.B. Berger and W.F. Holbrook

G.P.O. 1923 Technical paper / Department of the Interior, Bureau of Mines 337

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by William W. Adams

G.P.O. 1923 Technical paper / Department of the Interior, Bureau of Mines 327

Available at 1 libraries

by William W. Adams

G.P.O. 1923 Technical paper / Department of the Interior, Bureau of Mines 331

Available at 1 libraries