Search U.S. government technical reports digitized or harvested by TRAIL.
Acid mine water in the anthracite region of Pennsylvania
Rock dusting and sampling including wet rock dusting at the Bureau of Mines experimental coal mine
Health and safety activities of the Bureau of Mines :fiscal year 1955
Administration of the Federal Coal-Mine Safety Act, calendar year 1956
Engineering control of health and safety hazards in uranium mines
Administration of the Federal Coal-Mine Safety Act, calendar year 1957
Administration of the Federal Coal-Mine Safety Act, 1952-58
Administration of the Federal Coal-Mine Safety Act, 1952-59
Administration of the Federal Coal-Mine Safety Act, 1952-60