449. Field Instructions for Measured Drawings: Historic American Buildings Survey. Washington, D.C.: Department of Interior, 1980. H1.1/No. 3

449. Field Instructions for Measured Drawings: Historic American Buildings Survey. Washington, D.C.: Department of Interior, 1980. H1.1/No. 3, Box: 41. William J. Cohen papers, MSS 0468. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/192466 Accessed September 19, 2024.