 | Controlling potato insects | (2) |
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 | Controlling potato insects / Landis. Shands, Wayland Arthur, 1905- 1n Washington, D.C. : U.S. Dept. of Agriculture, 1970. | |
| Controlling potato insects / by W.A. Shands, B.L. Landis, and W.J. Reid, Jr. Shands, Wayland Arthur, 1905- 1n Washington, D.C. : U.S. Dept. of Agriculture, 1969. | |
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