Tolong jelaskan mengenai Rujukan dari U.S. Steel dalam bahasa melayu

1970s news story "There's more to U.S. Steel then Steel"

New Feature on history of U.S. Steel

1971 news on U.S. Steel's innovations.

Yahoo! — United States Steel Corporation Company Profile

U.S. Steel Gary Works Photograph Collection, 1906–1971

U.S. Steel Movie clip of the Contemporary Resort Construction, compliments of BigFloridaCountry.com

The "World's Largest Plate Mill," formerly a part of U.S. Steel-Gary Works

History of the United States Steel Corporation, 1873–2011

Guide to United States Steel Corporation. Training manuals. 5342. Kheel Center for Labor-Management Documentation and Archives, Martin P. Catherwood Library, Cornell University.

Fortune Magazine 1959 "Fortune 500" list