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john j daigle
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Bibliography of Forest Service recreation research
John J. Daigle · Northeastern Forest Experiment Station
60 sayfa · 1993
Bibliography / Forest reserves / Recreation / Recreational use / Outdoor recreation
National forest trail users
John J. Daigle · United States Department of Agriculture, Forest Service, Northeastern Forest Experiment Station
13 sayfa · 1994
Trails / Planning / Management / Outdoor recreation