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• Bureau of mines research and technologic work on coal, 1960
• Bureau of mines research and technologic work on coal, 1959
• Production of mineral fuels and hydropower in the United States since 1800
• Bureau of mines research and technologic work on coal, 1962
• Bureau of mines research and technologic work on coal, 1961
• Bureau of Mines research and technologic work on coal, 1963
• Bureau of mines research and technologic work on coal, 1964
• Sulfur content of United States coals
• Forms of sulfur in U.S. coals
• Major ash constituents in U.S. coals