Hydrogenation and Liquefaction of Coal: Effect of petrographic composition and rank of coal / by C.H. Fisher, G.C. Sprunk, A. Eisner, H.J. O'Donnell, L. Clarke, and H.H. Storch, Part 2
Charles Harold Fisher · George C. Sprunk
Jan 1942 · U.S. Department of the Interior, Bureau of Mines