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681
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682
Configuration of Appalachian logging roads /
Published 1971Search for the full-text version of this title in HathiTrust
Government Document Book -
683
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684
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685
Accelerated roadbuilding on the North Umpqua : an economic analysis /
Published 1972Government Document Book -
686
An economic analysis of accelerated road construction on the Bureau of Land Management's Tillamook Resource Area /
Published 1970Government Document Book -
687
Erosion and sedimentation following road construction and timber harvest on unstable soils in three small western Oregon watersheds /
Published 1970Government Document Book