Lehigh University, Mechanical Engineering Department, Class: Mechanical Engineering 114, Flow Chart Diagram of the Bethlehem Steel Company, Pennsylvania, Blueprints, 1947 December 15-1948 January 11

Lehigh University, Mechanical Engineering Department, Class: Mechanical Engineering 114, Flow Chart Diagram of the Bethlehem Steel Company, Pennsylvania, Blueprints, 1947 December 15-1948 January 11, Box: 123, Item: 317. Institute for the History of Technology and Industrial Archaeology Records, A&M 3936. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/156041 Accessed January 23, 2025.