"Growing Space Needs in the Urbanized Region" - proceedings of International Conference of the International Federation for Housing and Planning, Orebro, Sweden, 1965

"Growing Space Needs in the Urbanized Region" - proceedings of International Conference of the International Federation for Housing and Planning, Orebro, Sweden, 1965, Box: HUGO013, Folder: 14. Hugo Leipziger-Pearce collection, HUGO. Alexander Architectural Archives. https://archives.lib.utexas.edu/repositories/2/archival_objects/35623 Accessed September 26, 2026.