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: Federal Extension Service, U.S. Department of Agriculture, Washington, D.C.
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: D08934
Notes:
Page 8 in Grace Gallup and Lucinda Crile, Bibliography on Extension Research, November 1943-1948. Library List No. 48. USDA Library, U.S. Department of Agriculture, Washington, D.C. July 1949. Brief description Extension Service Circular 447. Revision of Circular 426 of the same title, which it supersedes. September 1947. 14 pages.