1. A United States view on changes in land use and land values affecting sustainable forest management;Alig,2007
2. Land use changes involving forestry in the United States: 1952 to 1997, with projections to 2050. PNW-GTR-587;Alig,2003
3. An invitation to ecological economics;Armsworth;Trends in Ecology & Evolution,2001
4. Iowa Wetlands: Perceptions of Values;Azevedo,2000
5. Alternative futures for the Willamette River Basin, Oregon;Baker;Ecological Applications,2004