Farming systems research
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Technical Centre for Agricultural and Rural Cooperation
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Planned change in farming systems: progress in on-farm research
edited by R Tripp 1991 348pp
lSBN 0471 93417 8 hbk
UKL39.95
John Wiley & Sons Ltd,
Baffin Lane,
Chichester, West Sussex PO19 1UD
UK
Farming systems development: guidelines f