457.1 Guidebook for State and Local Governments: Critical Areas Programs. New York, N.Y.: Institute of Rational Design, Inc., 1977. S0.1/No. 32

457.1 Guidebook for State and Local Governments: Critical Areas Programs. New York, N.Y.: Institute of Rational Design, Inc., 1977. S0.1/No. 32, Box: 41. William J. Cohen papers, MSS 0468. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/192478 Accessed September 19, 2024.