APA (7th ed.) Citation
World Almanac Books. (2006). The world almanac and book of facts 2006. World Almanac Books.
Chicago Style (17th ed.) Citation
World Almanac Books. The World Almanac and Book of Facts 2006. New York: World Almanac Books, 2006.
MLA (9th ed.) Citation
World Almanac Books. The World Almanac and Book of Facts 2006. World Almanac Books, 2006.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.