Cita APA

(2001). The world almanac and book of facts 2001. World Almanac Books.

Citación estilo Chicago

The World Almanac and Book of Facts 2001. New Jersey: World Almanac Books, 2001.

Cita MLA

The World Almanac and Book of Facts 2001. World Almanac Books, 2001.

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