Cita APA

(2003). The World Almanac and Book of Facts 2003. American: World Amanac.

Chicago Style Citation

The World Almanac and Book of Facts 2003. American: World Amanac, 2003.

Cita MLA

The World Almanac and Book of Facts 2003. American: World Amanac, 2003.

Atenció: Aquestes cites poden no estar 100% correctes.