Heilbroner, R. L. (1980). An inquiry into the human prospect: Updated and reconsidered for the 1980s. Norton.
Chicago-Zitierstil (17. Ausg.)Heilbroner, Robert L. An Inquiry into the Human Prospect: Updated and Reconsidered for the 1980s. New York: Norton, 1980.
MLA-Zitierstil (8. Ausg.)Heilbroner, Robert L. An Inquiry into the Human Prospect: Updated and Reconsidered for the 1980s. Norton, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.