Aligică, P. D. (2007). Prophecies of doom and scenarios of progress: Herman Kahn, Julian Simon, and the prospective imagination. Continuum.
Chicago-Zitierstil (17. Ausg.)Aligică, Paul Dragoş. Prophecies of Doom and Scenarios of Progress: Herman Kahn, Julian Simon, and the Prospective Imagination. New York [u.a.]: Continuum, 2007.
MLA-Zitierstil (9. Ausg.)Aligică, Paul Dragoş. Prophecies of Doom and Scenarios of Progress: Herman Kahn, Julian Simon, and the Prospective Imagination. Continuum, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.