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Start Over You searched for: Author Agricultural Research Service Remove constraint Author: Agricultural Research Service Publish Year Decade 1950 - 1959 Remove constraint Publish Year Decade: 1950 - 1959 Sudoc Stem A 77.302 Remove constraint Sudoc Stem: A 77.302

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4. Summary of certain pesticide chemical uses.

5. Common names of insecticides; [by] E L. Haller.

6. Inspection of foreign bulbs; by W.H. Wheeler.