APA (7th ed.) Zitazioa
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 Style (17th ed.) Zitazioa
National Research Council (U.S.). Committee on Coal Research, Technology, and Resource Assessments to Inform Energy Policy, National Academies Press (U.S.), eta Inc ebrary. Coal: Research and Development to Support National Energy Policy. Washington, D.C.: National Academies Press, 2007.
MLA (9th ed.) Zitazioa
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.
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