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Pacific Northwest ecoclass codes for plant associations

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By: Hall, Frederick C. - United States. Forest Service. Pacific Northwest Region.

Edition: [6th ed.?].

Publication info: [Portland, Or.?], USDA, Forest Service, Pacific Northwest Region, [1988]

Holding Institution: U.S. Department of Agriculture, National Agricultural Library
Plant communities of the Blue Mountains in eastern Oregon and southeastern Washington

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By: Hall, Frederick C. - United States. Forest Service. - United States. Forest Service. Pacific Northwest Region.

Publication info: [Portland, Or.], U.S.D.A. Forest Service, Pacific Northwest Region, [1973]

Holding Institution: U.S. Department of Agriculture, National Agricultural Library