216.1 Kaiser, Edward J., Karl Elfers, Sidney Cohn, Peggy A. Reichert, Maynard M. Hufschmidt, and Raymond E. Stanland. Promoting Environmental Quality through Urban Planning and Controls. Washington, D.C.: U.S. Government Printing Office, 1974. U1.1/No. 1

216.1 Kaiser, Edward J., Karl Elfers, Sidney Cohn, Peggy A. Reichert, Maynard M. Hufschmidt, and Raymond E. Stanland. Promoting Environmental Quality through Urban Planning and Controls. Washington, D.C.: U.S. Government Printing Office, 1974. U1.1/No. 1, Box: 28. William J. Cohen papers, MSS 0468. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/191824 Accessed September 19, 2024.