Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 192 Document Number: D03125
Notes:
Visual Aids in Agricultural Extension Series, Scientific Communication Service of the Inter-American Institute of Agricultural Sciences of the Organization of American States. 39 pages.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 2 Document Number: B00232
Notes:
AgComm Teaching. Review of Extension Research 1946/47-1956, Extension Service Circular 506, U.S. Department of Agriculture, Washington, D.C., U.S. Dept of Agriculture, Extension Service, pp54, Jun 1949.
