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Book List
5
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Environmental guidelines for agricultural mechanization / prep. by UNEP in consultation with UN specialized agencies ; ed. by Henry E. Russell and associates.
- United Nations Environment Programme,
- 1986.
- Nairobi :
-
Environmental guidelines for afforestation projects / [prep. by UNEP].
- United Nations Environment Programme,
- 1986.
- Nairobi :
-
Environmental guidelines for farming systems research / [prep. by UNEP].
- United Nations Environment Programme,
- 1986.
- Nairobi :
-
Environmental guidelines for agroforestry projects / [prep. by UNEP].
- United Nations Environment Programme,
- 1986.
- Nairobi :
-
Environmental guidelines for rural roads / [prep. by UNEP].
- United Nations Environment Programme,
- 1986.
- Nairobi :