Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 130 Document Number: C19360
Notes:
In "Agricultural technology for developing nations : farm mechanization alternatives for 1-10 hectare farms. Proceedings. Special International Conference. University of Illinois at Urbana-Champaign May 23-24, 1978", Burton Swanson Collection, pp 45-52
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: Byrnes2 Document Number: C12331
Notes:
Francis C. Byrnes Collection, Pages 87-88 in Borton, Raymond E. (ed.), Selected readings to accompany getting agriculture moving. Volume 1. Agricultural Development Council, New York, NY. 526 p.