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2
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Tree products in agroecosystems : economic and policy issues / J.E.M. Arnold.
- International institute for environment and development (IIED),
- 1991.
- London :
-
Common property resource management in India / by J.E.M. Arnold and W.C. Stewart.
- University of Oxford. Department of plant sciences. Oxford forestry institute,
- 1991.
- Oxford :