"The Next Fifty Years/1967-2017," AIP Conference, Washington, DC, October, 1-6, 1967

"The Next Fifty Years/1967-2017," AIP Conference, Washington, DC, October, 1-6, 1967, Box: HUGO014, Folder: 3. Hugo Leipziger-Pearce collection, HUGO. Alexander Architectural Archives. https://archives.lib.utexas.edu/repositories/2/archival_objects/35627 Accessed September 25, 2026.