National Conference on City Planning (23rd : Rochester, N.Y.). (1931). Planning problems of town, city and region: Papers and discussions at the twenty-third National Conference on City Planning, held at Rochester, New York, June 22 to 24, 1931. W.F. Fell for the Conference.
Lua i Stíl Chicago (17ú heag.)National Conference on City Planning (23rd : Rochester, N.Y.). Planning Problems of Town, City and Region: Papers and Discussions at the Twenty-third National Conference on City Planning, Held at Rochester, New York, June 22 to 24, 1931. Philadelphia: W.F. Fell for the Conference, 1931.
Lua MLA (8ú heag.)National Conference on City Planning (23rd : Rochester, N.Y.). Planning Problems of Town, City and Region: Papers and Discussions at the Twenty-third National Conference on City Planning, Held at Rochester, New York, June 22 to 24, 1931. W.F. Fell for the Conference, 1931.