1. Glen Canyon Dam Releases and Downstream Recreation: An Analysis of User Preferences and Economic Values;Bishop,1987
2. Benefits estimation, quality demand curves, and congestion costs;Douglas,1990
3. The Benefits of Environmental Improvement;Freeman,1979
4. Waterfowls and Wetlands: Toward Bioeconomic Analysis;Hammack,1974
5. Density, crowding, and satisfaction: sociological studies for determining carrying capacities;Heberlein,1977