APA (7th ed.) Zitazioa

Harvey, F. L. History of the Washington National Monument and of the Washington National Monument Society.

Chicago Style (17th ed.) Zitazioa

Harvey, Frederick L. History of the Washington National Monument and of the Washington National Monument Society.

MLA (9th ed.) Zitazioa

Harvey, Frederick L. History of the Washington National Monument and of the Washington National Monument Society.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.