457.4 Highway Research Record: Number 317-Parking Analyses. Washington, D.C.: Highway Research Board, 1970. T3.1/No. 9

457.4 Highway Research Record: Number 317-Parking Analyses. Washington, D.C.: Highway Research Board, 1970. T3.1/No. 9, Box: 41. William J. Cohen papers, MSS 0468. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/192481 Accessed September 19, 2024.