Advancements in Methodology for Projecting Future Recreation Participation. H. Ken Cordell, Daniel R. Fesenmaier, Stanley R. Lieber, and Lawrence A. Hartmann. Proceedings of the National Outdoor Recreation Trends Symposium II, vol. I, 1985, pp. 89-109. National Park Service Science Publications Office, 75 Spring Street, S . W. , Atlanta, Georgia 30303
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