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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| Jazyk: | English |
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[Ithaca, N.Y.]
1941.
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| Edice: | USAIN state and local literature preservation project, New York. Cornell University thesis.
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| Médium: | Diplomová práce Monograph Microform Note that CRL will digitize material from the collection when copyright allows. |