Page 8 in Extension Circular 534, Review of Extension Research, January through December 1960, U.S. Department of Agriculture, Washington, D.C. Summary of Research Bulletin 850, Ohio Agricultural Experiment Station, Ohio State University,Columbus. 1960. 38 pages.
Page 60 in Extension Circular 541, Review of Extension Research, January through December 1961, U.S. Department of Agriculture, Washington, D.C. Summary of Ohio Agricultural Experiment Station Research Bulletin 890 of this title, Ohio State University, Wooster. 1961. 18 pages.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 71 Document Number: D10781
Notes:
Claude W. Gifford Collection. Beyond his materials in the ACDC collection, the Claude W. Gifford Papers, 1919-2004, are deposited in the University of Illinois Archives. Serial Number 8/3/81. Locate finding aid at https://archives.library.illinois.edu/archon/, Pages 3-4 in Research Library Newsletter, Farm Journal, September 15, 1965., Findings from a national research project of the National Farm and Power Equipment Dealers and reported in Farm and Power Equipment magazine. Questions involved where farmers first see and hear such information and what sources they consider most useful.
Pages 54-55 in Review of Extension Research, January through December 1957. Summary of research for Agricultural Extension, College of Agriculture, University of Illinois, Urbana. 1957. 7 pp.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 70 Document Number: D10763
Notes:
Claude W. Gifford Collection. Beyond his materials in the ACDC collection, the Claude W. Gifford Papers, 1919-2004, are deposited in the University of Illinois Archives. Serial Number 8/3/81. Locate finding aid at https://archives.library.illinois.edu/archon/, Claude W. Gifford Collection. 22 pages., A Farm Journal document that briefly summarizes findings from 18 surveys conducted by universities, advertising firms, farm periodicals, and a trade association between 1957 and 1963.