1. Preservation Tech Notes: Historic Interior Spaces Number 2: Preserving Historic Office Building Corridors Collection: City Planning and Landscape Architecture (CPLA) Contributers: National Park Service, U.S. Department of the Interior Format: Newsletter Publication Date: 1989-07 Location: City Planning & Landscape Architecture Reference and Resource Center, Funk Library, University of Illinois Box: 37; Folder: 11 CPLA Sub-Collection: Cities from Around the World