APA (7th ed.) Citation

United States. Central Intelligence Agency. (2010). The CIA world factbook 2011. Skyhorse Publishing.

Chicago Style (17th ed.) Citation

United States. Central Intelligence Agency. The CIA World Factbook 2011. New York: Skyhorse Publishing, 2010.

MLA (9th ed.) Citation

United States. Central Intelligence Agency. The CIA World Factbook 2011. Skyhorse Publishing, 2010.

Warning: These citations may not always be 100% accurate.