Cita APA (7th ed.)
National Research Council (U.S.). Committee on the Strategic Assessment of the U.S. Department of Energy's Coal Program, ebrary, Inc, Longwell, J. P., & Rubin, E. S. (1995). Coal: Energy for the future. National Academy Press.
Cita Chicago (17th ed.)
National Research Council (U.S.). Committee on the Strategic Assessment of the U.S. Department of Energy's Coal Program, Inc ebrary, John P. Longwell, i Edward S. Rubin. Coal: Energy for the Future. Washington, D.C.: National Academy Press, 1995.
Cita MLA (9th ed.)
National Research Council (U.S.). Committee on the Strategic Assessment of the U.S. Department of Energy's Coal Program, et al. Coal: Energy for the Future. National Academy Press, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.