World Wilderness Congress (8th : 2005 : Anchorage, Alaska)
Fort Collins, CO : U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, [2007]
2007
World Wilderness Congress (8th : 2005 : Anchorage, Alaska)
Fort Collins, CO : U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, [2007]
2007