264.1 National Housing Center. Residential Site Planning Guide. Washington, D.C.: National Association of Home Builders of the United States, 1975. S8.1/No. 5

264.1 National Housing Center. Residential Site Planning Guide. Washington, D.C.: National Association of Home Builders of the United States, 1975. S8.1/No. 5, Box: 31. William J. Cohen papers, MSS 0468. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/191904 Accessed September 19, 2024.