Hefner, R. A. (2009). The grand energy transition: The rise of energy gases, sustainable life and growth, and the next great economic expansion. Wiley.
Chicago-Zitierstil (17. Ausg.)Hefner, Robert A. The Grand Energy Transition: The Rise of Energy Gases, Sustainable Life and Growth, and the Next Great Economic Expansion. Hoboken, N.J: Wiley, 2009.
MLA-Zitierstil (9. Ausg.)Hefner, Robert A. The Grand Energy Transition: The Rise of Energy Gases, Sustainable Life and Growth, and the Next Great Economic Expansion. Wiley, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.