Participatory Valuation of Wild Resources: An overview of the Hidden Harvest Methodology 01 January 1998
A Hidden Threat to Food Production: Air pollution and agriculture in the developing world 01 January 1997
Hidden Harvest: The value of wild resources in agricultural systems - A Project Summary 01 January 1995
New Horizons: The economic, social and environmental impacts of participatory watershed development 01 January 1995