Selling forest environmental services: market-based mechanisms for conservation and development 01 January 2002
Conservation, Management and Development of Forest Resources. Proceedings of the Malaysia - United Kingdom Programme Workshop 21-24 October 1996 01 January 1998
Economics of soil degradation: an illustration of the change in productivity approach to valuation in Mali and Malawi, The 01 January 1995
Hidden Harvest: The value of wild resources in agricultural systems - A Project Summary 01 January 1995