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1Published 1980Subjects: “...Coal liquefaction Economic aspects United States....”
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2Published 1980Subjects: “...Coal liquefaction Economic aspects United States....”
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3by Hoffman, LawrenceSubjects: “...Coal liquefaction Economic aspects United States....”
Published 1981
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4
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5Published 1977Subjects: “...Coal liquefaction Economic aspects United States....”
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6Published 2008Subjects: “...Coal liquefaction Economic aspects United States....”
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