1. The World Bank Group “Millennium Development Goals: About the Goals ” www.developmentgoals.org/About_the_goals.htm (2003).
2. T. R. Malthus An Essay on the Principle of Population (Norton New York 2003).
3. P. R. Ehrlich A. H. Ehrlich The Population Explosion (Simon & Schuster New York 1990).
4. L. Brown H. Kane Full House: Reassessing the Earth's Population Carrying Capacity (Norton New York 1994).
5. D. H. Meadows D. L. Meadows J. Randers Beyond the Limits: Confronting Global Collapse Envisioning a Sustainable Future (Chelsea Green White River Junction VT 1992).