USA: Extension Service, U.S. Department of Agriculture, Washington, D.C.
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: D08964
Notes:
Page 24 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. Summary of Agriculture Technical Bulletin 106, contribution from Extension Service, U.S. Department of Agriculture, Washington. 1929. 48 pages.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: D08603
Notes:
Located in Review of Extension Studies, volumes for 1946-1956, U.S. Department of Agriculture, Washington, D.C., Summary of a thesis for the master of education degree, Colorado Agricultural and Mechanical College, Fort Collins. 55 pages.