The World Factbook. Estados Unidos. Central Intelligence Agency, CIA 2014.
The World Factbook [link]Paper  bibtex   
@misc{estados_unidos._central_intelligence_agency_cia_world_2014,
	title = {The {World} {Factbook}},
	url = {https://www.cia.gov/library/publications/the-world-factbook/},
	urldate = {2014-08-19},
	author = {{Estados Unidos. Central Intelligence Agency, CIA}},
	year = {2014},
}

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