APA aipamena

(1999). An Outline American history. USA: United States Infomation Agency (USIA).

Chicago Style aipamena

An Outline American History. USA: United States Infomation Agency (USIA), 1999.

MLA aipamena

An Outline American History. USA: United States Infomation Agency (USIA), 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.