APA (7th ed.) Citation
(2011). The World almanac and book of facts. 2011. World Almanac Books.
Chicago Style (17th ed.) Citation
The World Almanac and Book of Facts. 2011. New York, NY: World Almanac Books, 2011.
MLA (9th ed.) Citation
The World Almanac and Book of Facts. 2011. World Almanac Books, 2011.
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