Puerto Rico - Bibliography
Braus, Patricia. "The Spending Power of Puerto Rico." American Demographics. Vol. 13, No. 4, April 1991.
Economist Intelligence Unit. Country Profile: Puerto Rico. London: Economist Intelligence Unit, 2001.
Polin, Zena. "Tourism: Puerto Rico's 'Rising Star.'" The Washington Times. 29 September 1999.
"Puerto Rico Fact Sheet." Energy Information Administration. <http://www.eia.doe.gov/emeu/cabs/prico.html> . Accessed March 2001.
U.S. Central Intelligence Agency. World Factbook 2000. <http://www.odci.gov/cia/publications/factbook/index.html> . Accessed August 2001.