City of Pittsburgh, Pennsylvania, Department of City Planning, Map, June 1969

City of Pittsburgh, Pennsylvania, Department of City Planning, Map, June 1969, Box: 131, Item: 338. 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/156062 Accessed January 23, 2025.