Correspondence on negotiating agreements with Building Service Employees International Union. 1949.

Correspondence on negotiating agreements with Building Service Employees International Union. 1949., Box: 33, Folder: 5. International Ladies Garment Workers Union. Frederick F. Umhey, Executive Secretary. Correspondence, 5780/005.. Kheel Center for Labor-Management Documentation & Archives. https://archives.library.cornell.edu/repositories/4/archival_objects/1439112 Accessed October 25, 2025.