APA (7th ed.) Zitazioa
American concrete institute 55 year index 1905-1959 / American Concrete Institute: A C I Pub 624.1834 An512.
Chicago Style (17th ed.) Zitazioa
American Concrete Institute 55 Year Index 1905-1959 / American Concrete Institute: A C I Pub 624.1834 An512.
MLA (9th ed.) Zitazioa
American Concrete Institute 55 Year Index 1905-1959 / American Concrete Institute: A C I Pub 624.1834 An512.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.