Hertsgaard, M. 1999. Earth odyssey: around the world in search of our environmental future. Random House, NY. http://www.globalgreendeal.org/

Hunter, L. M. 2000. The environmental implications of population dynamics. Rand, Santa Monica, CA. http://www.rand.org/popmatters.

Kahn, P. H. 1999. The human relationship with nature: develpment and culture. MIT Press, Cambridge, MA.

Martin, P. and J. Widgren. 2002. International migration: facing the challenges. Population Bulletin 57(1). Population Reference Bur., Washington, DC.

McFalls, Jr., J. A. 2003. Population: a lively introduction, 4th ed. Population Bulletin 58, no. 4. Population Reference Bureau, Washington, DC.

McMichael, T. 2001. Human frontiers, environments, and disease: past patterns, uncertain futures. Cambridge University Press.

North American Commission for Environmental Cooperation. 2002. The North American mosaic / El mosaico de AmΘrica del Norte. http://www.cec.org/soe/index.cfm?varlan=english

Olson, S. L. 1989. Extinction on islands: man as a catastrophe. in Conservation for the twenty-first century. (D. Western and M. C. Pearl, eds.) Oxford Univ. Press, Oxford.

Palumbi, S. R. 2001. Humans as the world's greatest evolutionary force. Science 293:1786-1790.

Vitousek, P. M., H. A. Mooney, J. Lubchenco and J. M. Melillo. 1997. Human domination of Earth's ecosystems. Science 277:494-499.

AAAS Atlas of Population and the Environment:
http://www.ourplanet.com/aaas/pages/contents01.html

Population Reference Bureau: http://www.prb.org

Population-Environment Balance: http://www.balance.org/

United Nations / Naciones Unidas
State of world population 2002: http://www.unfpa.org/swp/swpmain.htm
El estado de la poblaci≤n mundial 2002 http://www.unfpa.org/swp/swpmain_esp.htm

PopNet: http://www.popnet.org/

Popline: http://db.jhuccp.org/popinform/

Population, nutrition, health /
Poblaci≤n, nutrici≤n, salud: http://www.measurecommunication.org/

http://www.popnet.org/

http://metalab.unc.edu/lunarbin/worldpop

http://www.un.org/popin/

http://www.wri.org/wr2000/

http://antwrp.gsfc.nasa.gov/apod/image/0011/earthlights_dmsp_big.jpg