APA aipamena

(1989). An Outline of American government. Washington D.C: U.S.International Communication Agency.

Chicago Style aipamena

An Outline of American Government. Washington D.C: U.S.International Communication Agency, 1989.

MLA aipamena

An Outline of American Government. Washington D.C: U.S.International Communication Agency, 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.