TY  - PRO
AU  - Collinson,M.P.
TI  - On-farm research with a systems perspective as a link between farmers, technical research and extension
PY  - 1984///
KW  - Development aid
KW  - Extension activities
KW  - Farmers
KW  - AGROVOC
KW  - Technical aid
KW  - Farming systems
ER  -