 | Corn Diseases and pests. | (2) |
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 | Economic impact of discontinuing aldrin use in corn production / . Delvo, Herman W. 1n Washington, D.C. : U.S. Dept. of Agriculture, Economic Research Service, 1974. | |
| Bacterial wilt and Stewarts leaf blight of corn / by Alice L. Robert. Robert, Alice L. (Alice Louise), 1910- 4n Washington, D.C. : U.S. Dept. of Agriculture, 1967. | |
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