National projections of forest and rangeland condition indicators [microform] : a technical document supporting the 1999 USDA Forest Service RPA assessment / John Hof ... [et al.] (General technical report ; PNW-GTR-442)
National projections of forest and rangeland condition indicators [microform] : a technical document supporting the 1999 USDA Forest Service RPA assessment / John Hof ... [et al.]