259. National Agricultural Lands Study. America's Agricultural Land Base in 1977. Washington, D.C.: U.S. Government Printing Office, n.d. R1.1/No. 9

259. National Agricultural Lands Study. America's Agricultural Land Base in 1977. Washington, D.C.: U.S. Government Printing Office, n.d. R1.1/No. 9, Box: 31. William J. Cohen papers, MSS 0468. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/191898 Accessed September 19, 2024.