APA (7th ed.) Zitazioa
Mannesmann-Export. Manesmann tubular steel construction. The Mannesmann.
Chicago Style (17th ed.) Zitazioa
Mannesmann-Export. Manesmann Tubular Steel Construction. Hanover,Germany: The Mannesmann.
MLA (9th ed.) Zitazioa
Mannesmann-Export. Manesmann Tubular Steel Construction. The Mannesmann.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.