Search U.S. government technical reports digitized or harvested by TRAIL.
Manganese investigations -metallurgical division.
Development and Use of Certain Flotation Reagents
Report Submitted to the Trail Smelter Arbitral Tribunal
Sponge iron :a progress report
The metallurgical research program of the Bureau of Mines relating to iron and steel
Metallurgical research program of the Bureau of Mines relating to the nonferrous metals