Search Results - "Ferrell. G.T."

Author Results for "Ferrell. G.T."

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Differential susceptibility of white fir provenances to balsam twig aphid Differential susceptibility of white fir provenances to balsam twig aphid

by Ferrell, G.T., Forest Service, Berkeley, CA (USA). Pacific Southwest Forest and Range Experiment Station eng
Published 1989

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Risk-rating systems for mature red fir and white fir in northern California Risk-rating systems for mature red fir and white fir in northern California

by Ferrell. G.T., Forest Service, Berkeley, CA (USA). Pacific Southwest Forest and Range Experiment Station eng
Published 1980

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