Duvel, G.H. (author), Visser, B.F.A. (author), and Visser: Department of Agricultural Development, Oudtshoorn; Duvel: Professor and Head, Department/Director S A Institute of Agricultural Extension, University of Pretoria, Pretoria
Format:
Journal article
Publication Date:
1991
Published:
South Africa
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 88 Document Number: C06032
