Αναφορές εγγραφής

Παραπομπή σε μορφή APA (7η εκδ.)
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.
Παραπομπή σε μορφή Chicago (17η εκδ.)
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, και Edward S. Rubin. Coal: Energy for the Future. Washington, D.C.: National Academy Press, 1995.
Παραπομπή σε μορφή MLA (9th εκδ.)
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.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.