APA aipamena

(2005). The world almanac and book of facts 2005. New York: World Almanac books.

Chicago Style aipamena

The World Almanac and Book of Facts 2005. New York: World Almanac books, 2005.

MLA aipamena

The World Almanac and Book of Facts 2005. New York: World Almanac books, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.