APA aipamena

(1994). An outline of American history. U.S.: United states Information Agency.

Chicago Style aipamena

An Outline of American History. U.S.: United states Information Agency, 1994.

MLA aipamena

An Outline of American History. U.S.: United states Information Agency, 1994.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.