USA: Federal Extension Service, U.S. Department of Agriculture, Washington, D.C.
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: D08932
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 of findings in a PhD dissertation, Graduate Library School, University of Chicago. 1946.