1. Douglas, Melvyn, December 22, 1973, December 26, 1973, July 2, 1974, July 24, 1974, May 13, 1974 Arthur, Thomas H. Indiana University » Center for Documentary Research and Practice » Collection: ohrc021: Biography: Melvyn Douglas, 1972-1980
2. Hyneman, Charles, October 12,1976, November 2,1976, November 30,1976, March 4,1977, February 17, 1978, October 24, 1978 Ostrom, Elinor Indiana University » Center for Documentary Research and Practice » Collection: ohrc033: Development of Political Science in the Twentieth Century, 1976-1978
