United States Steel Corporation. (1926). United States Steel Corporation: Silver anniversary = twenty fifth anniversary. United States Steel Corporation.
Chicago-Zitierstil (17. Ausg.)United States Steel Corporation. United States Steel Corporation: Silver Anniversary = Twenty Fifth Anniversary. New York, NY: United States Steel Corporation, 1926.
MLA-Zitierstil (9. Ausg.)United States Steel Corporation. United States Steel Corporation: Silver Anniversary = Twenty Fifth Anniversary. United States Steel Corporation, 1926.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.