1. Boundary Waters Canoe Area Wilderness: 1991 visitor survey data
- Author(s):
- Watson, Alan E.; Cole, David N.; Cronn, Richard; Sullivan, Z. Kent
2. Auyuittuq and Quttinirpaaq National Parks in the eastern Arctic Nunavut Region of Canada: 2003-2004 visitor experience study
- Author(s):
- Watson, Alan E.; Lachapelle, Paul R.; McCool, Stephen F.