Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C19155
Notes:
Pages 111-170 in U.S. Department of Agriculture, "Farmers in a changing world," 1940 Yearbook of Agriculture, U.S.Government Printing Office, Washington, D.C. 1,215 pages.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 148 Document Number: C23854
Notes:
Via "Purdue News," Purdue University, West Lafayette, Indiana. 4 pages., "Old versus new" dimensions of agriculture, as identified by Purdue University agricultural economist Michael Boehlje.