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Authors whose works are in public domain in at least one jurisdiction

List of works by Robert Asa Cushman

The cherry leaf-beetle : a periodically important enemy of cherries ⬇️

Washington, D.C.: U.S. Dept. of Agriculture, 1916.

The insect enemies of the cotton boll weevil ⬇️

Washington, D.C.: U.S. Dept. of Agriculture, Bureau of Entomology, 1912.

The insect enemies of the cotton boll weevil ⬇️

Washington,Govt. print. off.,1912. | Library of Congress

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