The influence of the soil conservation program on farm organization and operation in the Crooked Creek project area of western Pennsylvania
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| 語言: | English |
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[Ithaca, N.Y.]
1941.
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| 叢編: | USAIN state and local literature preservation project, New York. Cornell University thesis.
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| 主題: | |
| 格式: | Thesis Monograph Microform Note that CRL will digitize material from the collection when copyright allows. |