APA (7th ed.) Citation

The_World... (2004). The World Almanac and book of facts. World Almanac Books.

Chicago Style (17th ed.) Citation

The_World... The World Almanac and Book of Facts. World Almanac Books, 2004.

MLA (8th ed.) Citation

The_World... The World Almanac and Book of Facts. World Almanac Books, 2004.

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