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Lumber recovery from dead ponderosa pine in the Colorado Front Range

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By: Willits, Susan. - Woodfin, Richard O. - Snellgrove, Thomas A. - Pacific Northwest Research Station (Portland, Or.)

Publication info: [Portland, Or.], U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1990

Holding Institution: U.S. Department of Agriculture, National Agricultural Library
Sugar pine utilization : a 30-year transition

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By: Willits, Susan. - Fahey, Thomas D. (Thomas Daniel), - Pacific Northwest Research Station (Portland, Or.)

Publication info: Portland, Ore, U.S. Dept. of Agriculture, Pacific Northwest Research Station, [1991]

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