Farming systems research /
United Nations Environment Programme.
- [Nairobi] : United Nations Environment Programme, 1986.
- x, 10 p.
- UNEP environmental management guidelines ; no. 12 .
Cover title: Environmental guidelines for farming systems research
89080253
Agriculture--Research.
Environmental policy.
Conservation of natural resources.
Cover title: Environmental guidelines for farming systems research
89080253
Agriculture--Research.
Environmental policy.
Conservation of natural resources.