Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 23 Document Number: B02409
Notes:
#946, Harold Swanson Collection. Review of Extension Research 1946/47-1956, Extension Service Circular 506, U.S. Department of Agriculture, Washington, D.C., University Park, PA : The Pennsylvania State University, Agricultural Extension Service, [19-]. 16 p.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 30 Document Number: B02984
Notes:
#950, Harold Swanson Collection. Review of Extension Research 1946/47-1956, Extension Service Circular 506, U.S. Department of Agriculture, Washington, D.C., Washington, D.C. : U.S. Department of Agriculture, Cooperative Extension Work in Agriculture and Home Economics, 1948. 12 p. (Extension Service Circular No. 453). Extension Circular 453
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 18 Document Number: B02099
Notes:
Review of Extension Research 1946/47-1956, Extension Service Circular 506, U.S. Department of Agriculture, Washington, D.C., Orono, ME : University of Maine, Extension Service, 1948. 14 p.
