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Entomologists in the Agricultural Research Service
Bees and Pollination Program Planning Workshop, November 19-20, 1999 ... College Park, Maryland
Behavioral chemicals produced by Heliothis species : bibliographic data base, 1964-83
The Hessian fly in the United States
Report of a trip to India and the Orient in search of the natural enemies of the citrus white fly
The more destructive locusts of America north of Mexico
Destructive locusts : a popular consideration of a few of the more injurious locusts (or "grasshoppers") of the United States, together with the best…
Key to the native perennial grasses, midwest region east of the Great Plains
United States standards for grades of processed fruits, vegetables, and certain other products (as of July 15, 1960)
Forest resources of Texas