19.1. Alchian, Armen A. and William R. Allen. University Economics. Belmont, Calif.: Wadsworth Publishing Company, Inc., 1964. E0.1/No. 2

19.1. Alchian, Armen A. and William R. Allen. University Economics. Belmont, Calif.: Wadsworth Publishing Company, Inc., 1964. E0.1/No. 2, Box: 20. William J. Cohen papers, MSS 0468. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/191354 Accessed September 18, 2024.