Friedrichs, J. (2013). The future is not what it used to be: Climate change and energy scarcity. MIT Press.
Chicago-referens (17:e uppl.)Friedrichs, Jörg. The Future Is Not What It Used to Be: Climate Change and Energy Scarcity. Cambridge, Mass.: MIT Press, 2013.
MLA-referens (9:e uppl.)Friedrichs, Jörg. The Future Is Not What It Used to Be: Climate Change and Energy Scarcity. MIT Press, 2013.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.