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o wayne robuck
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The common plants of the hemlock-spruce forests of Alaska
O. Wayne Robuck · U.S. Forest Service, Pacific Northwest Forest and Range Experiment Station
67 sayfa · 1977
Botany / Woody plants / Forests and forestry
Common alpine plants of southeast Alaska
O. Wayne Robuck · U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station
207 sayfa · 1989
Mountain plants / Plants