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- United States. Mine Safety and Health Administration8
- United States. Bureau of Mines5
- United States. Congress. Senate. Committee on Labor and Human Resources3
- National Mine Health and Safety Academy2
- United States2
- Zabetakis, Michael George, 1924-2
- Denver Research Center (United States. Bureau of Mines)1
- Hanson, Lowell C.1
- Harrington, D. (Daniel), 1878-1
- Hodges, James E.1
- Kissell, Fred N.1
- L.C. Hanson Company1
- Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)1
- Raatma, Lucia1
- Redmond, Kevin M.1
- Rice, George S. (George Samuel), b. 18661
- Smith, Alex C.1
- Steidle, Edward, b. 18871