Showing 1 - 4 of 4 for search: 'Van Hees, Willem W. S.', query time: 0.03s
by Van Hees, Willem W. S.
Published: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1992
Description: 15 pages : illustrations, map ; 28 cm.
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by Van Hees, Willem W. S.
Published: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1999
Description: iii, 51 pages : illustrations, maps ; 28 cm.
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by Van Hees, Willem W. S.
Published: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2005
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by Birdsey, Richard A.
Published: U.S. Dept. of Agriculture, Forest Service, Southern Forest Experiment Station, 1981
Description: 10 pages : illustrations, 1 map ; 28 cm.
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Forest regeneration Sitka spruce Reproduction Spruce bark beetles Spruce beetle Environmental aspects Vegetation surveys White spruce Diseases and pests White spruce Reproduction