APA aipamena

(2004). The wrld amanac and book of facts 2004.

Chicago Style aipamena

The Wrld Amanac and Book of Facts 2004. 2004.

MLA aipamena

The Wrld Amanac and Book of Facts 2004. 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.