1. Bishop , R. C. K. J. Boyle M. P. Welsh R. M. Baumgartner P. R. Rathbam Glen Canyon Dam releases and downstream recreation: An analysis of user preferences and economic values, final report Salt Lake City, Utah 1987
2. Cordell , H. K. J. C. Bergstrom D. B. K. English D. K. Klinko C. Overdevest Economic values and impacts of outdoor recreation at western North Carolina lakes under different management alternatives, final report Raleigh 1990
3. Recreational demands for maintaining instream flows;Daubert;Am. J. Agric. Econ.,1981