Forest pest observer.

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Bibliographic Details
Imprint:Columbus, Ohio, U.S. Central States Forest Experiment Station.
Subject:Forest insects.
Forests and forestry.
Forests and forestry -- Research.
Trees -- Diseases and pests.
United States.
Format: Print Journal
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Other authors / contributors:Central States Forest Experiment Station (Columbus, Ohio)
Date / volume:v. 1- 1956-