"Aufsatzsammlung." . . "United States." . . "Coal Analysis." . . . . "Chemische Analyse." . . "Coal United States Analysis." . . . . . . . "This manual presents analytical data from currently recommended procedures as well as procedures used in the 1980's by the geochemical laboratories of the U.S. Geological Survey for the chemical characterization of coal and a comparison of the results of these procedures for the Argonne Premium Coal samples." . . . . . "The Chemical analysis of Argonne premium coal samples"@en . . . . . "The Chemical analysis of argonne premium coal samples"@en . . "The chemical analysis of Argonne Premium Coal samples" . . . . . . . . "The chemical analysis Argonne Premium Coal samples" . . . . . . . . . "Geological Survey (U.S.)," . . "Kohle." . .