North Dakota Lignite as a Fuel for Power-plant Boilers
Henry Kreisinger, Walter T. Ray, Dwight T. Randall, Alfred Holmes White, Arthur W. Belden, Horace Chamberlain Porter, John Kay Clement, Richard George Gottlob Moldenke, Robert Heywood Fernald, Frank Keehn Ovitz, Leason Herberling Adams, Charles Nelson Haskins
