National Research Council (U.S.). Committee on Coal Research, Technology, and Resource Assessments to Inform Energy Policy, National Academies Press (U.S.), & ebrary, Inc. (2007). Coal: Research and development to support national energy policy. National Academies Press.
Chicago-referens (17:e uppl.)National Research Council (U.S.). Committee on Coal Research, Technology, and Resource Assessments to Inform Energy Policy, National Academies Press (U.S.), och Inc ebrary. Coal: Research and Development to Support National Energy Policy. Washington, D.C.: National Academies Press, 2007.
MLA-referens (9:e uppl.)National Research Council (U.S.). Committee on Coal Research, Technology, and Resource Assessments to Inform Energy Policy, et al. Coal: Research and Development to Support National Energy Policy. National Academies Press, 2007.