Coal : energy for the future

National Research Council (U.S.). Committee on the Strategic Assessment of the U.S. Department of Energy's Coal Program.
Washington, D.C. : National Academy Press, 1995.

Coal : research and development to support national energy policy

National Research Council (U.S.). Committee on Coal Research, Technology, and Resource Assessments to Inform Energy Policy.
Washington, D.C. : National Academies Press, [2007]