National Association of Farm Broadcasters Archives, University of Illinois. NAFB Publications Series No. 8/3/88. Box No. 3. Contact http://www.library.uiuc.edu/ahx/ or Documentation Center
USA: Extension Service, U.S. Department of Agriculture, Washington, D.C.
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: D08952
Notes:
Page 9 in Lucinda Crile, Findings from studies of bulletins, news stories, and circular letters. Extension Service Circular 488. Revision of Extension Service Circular 461, which it supersedes. May 1953. 24 pages. Brief description from pages 38-39, Annual Report, State Home Demonstration Leader, Nebraska Agriculture College Extension, Lincoln. exhibits L3 and L4. 1939.
USA: Federal Extension Service, U.S. Department of Agriculture, Washington, D.C.
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: D08927
Notes:
Page 6 in Lucinda Crile, Review of Extension Studies - January to June 1948, Extension Service Circular 454, U.S. Department of Agriculture, Washington, D.C. July 1949. Summary of findings from the author's bachelor's thesis, Purdue University. Published by Agricultural Extension, Purdue University, West Lafayette, Indiana. 1948. 14 pages.