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1
Original vegetation cover of Wisconsin /
Published 1976“…North Central Forest Experiment Station, Forest Service, …”
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2
The original vegetation of Minnesota /
Published 1974“…North Central Forest Experiment Station, Forest Service, …”
Map -
3
Outdoor recreation research : applying the results : papers from a workshop held by the USDA Forest Service at Marquette, Michigan, June 19-21, 1973.
Published 1974“…North Central Forest Experiment Station, Forest Service, …”
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Government Document Conference Proceeding Book