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douglas mcewen
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Campsite impacts in four wildernesses in the South-Central United States
Douglas N McEwen · U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station
12 sayfa · 1996
Wilderness area users / Management / Camp sites, facilities / Education / Public use
Fundamentals of recreation programming for campgrounds and RV parks
Douglas N. McEwen · Management Learning
212 sayfa · 1991
Camp sites, facilities / Camping / Games / Management / Outdoor recreation
Expected Douglas-fir yield tables associated with D-plus thinning regimes
James Douglas McEwen · Yayınevi bilinmiyor
118 sayfa · 1983
Forest thinning / Growth / Douglas fir / Tables