USA: Federal Extension Service, U.S. Department of Agriculture, Washington, D.C.
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: D08917
Notes:
Pages 12-13 in Lucinda Crile, Review of Extension Studies - January to June 1951, Extension Service Circular 474, U.S. Department of Agriculture, Washington, D.C. July 1951. Summary of findings from a survey by the Committee for Audio-Visual Aids Study, Agricultural Extension, Iowa State University, Ames. 1950. 76 pages.