The Net Economic Value of Recreation on the National Forests: Twelve Types of Primary Activity Trips Across Nine Forest Service Regions

McCollum, D.W., G.L. Peterson, J.R. Arnold, D.C. Markstrom and D.M. Hellerstein.
1990. The Net Economic Value of Recreation on the National Forests: Twelve Types of Primary Activity Trips Across Nine Forest Service Regions. Research Paper RM-289, February. U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, CO. Keywords: 4u, 6b, 7d

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