Black, Russell Van Nest "Theory of Planning The Region As Exemplified By the Philadelphia Tri-State Plan"; "Planning for the Small American City", 1930, 1933

Black, Russell Van Nest "Theory of Planning The Region As Exemplified By the Philadelphia Tri-State Plan"; "Planning for the Small American City", 1930, 1933, Box: 18, Folder: 12. Clarence Stein papers, 3600. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/414716 Accessed January 25, 2026.