1. Gray, Carl, April 12, 1979 King, R.T. Indiana University » Center for Documentary Research and Practice » Collection: ohrc041: Economic History of Indiana in the Twentieth Century, 1976-1980
2. Marshall, Robert J., September 10, 1979 King, R.T. Indiana University » Center for Documentary Research and Practice » Collection: ohrc041: Economic History of Indiana in the Twentieth Century, 1976-1980
