Warren, K. (2001). Big steel: The first century of the United States Steel Corporation, 1901-2001. University of Pittsburgh Press.
Chicago-referens (17:e uppl.)Warren, Kenneth. Big Steel: The First Century of the United States Steel Corporation, 1901-2001. Pittsburgh, Pennsylvania: University of Pittsburgh Press, 2001.
MLA-referens (9:e uppl.)Warren, Kenneth. Big Steel: The First Century of the United States Steel Corporation, 1901-2001. University of Pittsburgh Press, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.