APA aipamena

Park Ken. (2005). The World Almanac and Book of Facts 2004. American: World Amanac.

Chicago Style aipamena

Park Ken. The World Almanac and Book of Facts 2004. American: World Amanac, 2005.

MLA aipamena

Park Ken. The World Almanac and Book of Facts 2004. American: World Amanac, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.