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Conifers -- Lake States
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Current results range from 1902 to 2016
- U.S. International Biological Program. Coniferous Forest Biome45
- Report (United States. Forest Service. Northern Region. Insect and Disease Management)14
- Forest ecology -- West (U.S.)13
- Report (United States. Forest Service. Northern Region. Forest Pest Management)13
- Conifers -- West (U.S.) -- Ecology12
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