The Battle Against Bark Beetles in Crater Lake National Park: 1925-34, June 1990

The Battle Against Bark Beetles in Crater Lake National Park: 1925-34

by Boyd E. Wickman

United States Department of Agriculture, U.S. Forest Service
Pacific Northwest Research Station
General Technical Report PNW-GTR-259, June 1990

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PDF file: battle-against-bark-beetles

bark-beetles-1 Complete file from NPSHistory.com: bark-beetles

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