1. Boundary Waters Canoe Area Wilderness: 1991 visitor survey data
- Author(s):
- Watson, Alan E.; Cole, David N.; Cronn, Richard; Sullivan, Z. Kent
2. Wrangell-St. Elias National Park and Preserve: 2002-2003 wilderness visitor experience data in the Alaska regional context
- Author(s):
- Watson, Alan E.; Glaspell, Brian S.; Kneeshaw, Katie C.
3. Boundary Waters Canoe Area Wilderness: 2007 visitor survey data
- Author(s):
- Dvorak, Robert G.; Watson, Alan E.; Christensen, Neal A.; Borrie, William T.; Schwaller, Ann