• 73 Wisconsin Historical Society Library
• 23 Memorial Library
• 16 Geology and Geophysics Library (Leith)
• 12 Middleton Shelving Facility
• 10 Verona Shelving Facility
• 8 WHS State Archives Preservation Facility
• 7 Science Libraries Shelving Facility
• 7 Wendt Commons Library - Closed
• 5 Law Library
• 4 Steenbock Library

• 6 Microforms
• 1 Maps, Atlases

• 28 Coal trade
• 15 Coal
• 14 Mineral industries
• 13 Mines and mineral resources
• 12 Coal miners
• 7 Anthracite coal
• 7 Bituminous coal
• 7 Coal mine accidents
• 7 Geology
• 7 Law and legislation
• 6 Mine rescue work
• 6 Mine safety
• 6 Natural gas
• 6 Nonmetallic minerals industry
• 5 Coal preparation
• 5 Safety measures
• 4 Environmental aspects
• 4 Safety regulations
• 4 Strip mining
• 3 Arbitration, Industrial
• 3 Railroads
• 3 Research
• 2 Employees
• 2 Employment agencies

• 6 United States. Office of Coal, Nuclear, Electric, and Alternate Fuels
• 5 National Coal Association
• 5 Ohio. Division of Labor Statistics
• 5 United States. Bureau of Mines
• 4 Colorado. State Inspector of Coal Mines
• 4 Ohio. Department of Industrial Relations
• 4 Pennsylvania. Department of Environmental Resources
• 3 Illinois State Geological Survey
• 3 Illinois. Bureau of Labor Statistics
• 3 International Labour Office
• 3 International Labour Organisation. Coal Mines Committee
• 3 Kansas. Mine Inspection Department
• 3 National Coal Association. Bituminous Coal Institute
• 3 National Institute for Occupational Safety and Health
• 3 United States. Energy Information Administration
• 3 United States. Energy Information Administration. Office of Energy Data Operations
• 3 Washington (State). State Inspector of Coal Mines
• 2 Colorado. Coal Mine Inspection Division
• 2 Illinois. Department of Mines and Minerals
• 2 Indiana. Geological Survey
• 2 Kansas. State Inspector of Coal Mines
• 2 Kansas. State Labor Department
• 2 Kentucky. Department of Mines
• 2 Kentucky. Department of Mines and Minerals
• 2 Mei tan ke xue yan jiu zong yuan (China)

• 179 English
• 5 Chinese
• 3 French
• 2 Russian
• 1 Japanese
• 1 Portuguese
• 1 Unknown

• 50 United States
• 25 Pennsylvania
• 10 Kansas
• 9 Illinois
• 7 Kentucky
• 7 Ohio
• 6 Colorado
• 6 Washington (State)
• 4 Canada
• 4 Great Britain
• 4 India
• 3 Indiana
• 3 Iowa
• 3 North Dakota
• 3 West Virginia
• 2 Alabama
• 2 China
• 2 Europe
• 2 Montana
• 2 Wyoming
• 1 Appalachian Region
• 1 Arkansas
• 1 Australia
• 1 Brazil
• 1 California

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