APA (7th ed.) Citation
(2003). <The> World almanac and book of facts 2003: <the> authority since 1868. World Almanac Books.
Chicago Style (17th ed.) Citation
<The> World Almanac and Book of Facts 2003: <the> Authority Since 1868. New York: World Almanac Books, 2003.
MLA (9th ed.) Citation
<The> World Almanac and Book of Facts 2003: <the> Authority Since 1868. World Almanac Books, 2003.
Warning: These citations may not always be 100% accurate.