Search U.S. government technical reports digitized or harvested by TRAIL.
Gasification of lignite in a commercial-scale pilot plant :progress report from July 1, 1950 to December 31, 1951, : and summary of work previous to July 1, 1950
Drying North Dakota lignite to 1,500 pounds pressure by the Fleissner process
Combustion of North Dakota lignite in domestic heaters