Duvel, G.H. (author / Professor of Agrarian Extension and Director of the South African Institute for Agricultural Extension, University of Pretoria) and Professor of Agrarian Extension and Director of the South African Institute for Agricultural Extension, University of Pretoria
Format:
Journal article
Publication Date:
1989
Published:
South Africa
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 79 Document Number: C04431
