Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C19063
Notes:
Burton Swanson Collection, Pages 348-361 in Rajab Ali Memon, managing author, and Elena Bashir, editor, Extension methods. National Book Foundation, Islamabad, Pakistan. 378 pages.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C17245
Notes:
Pages 25-34 in Carine Alders, Bertus Haverkort and Laurens van Veldhuizen (eds.), Linking with farmers: networking for low-external-input and sustainable agriculture. Intermediate Technology Publications, London, UK. 298 pages.
