Quantitative relationships between farm management factors and farming returns for use in the economic classification of land
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| 语言: | English |
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[Ithaca, N.Y.]
1949.
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| 丛编: | USAIN state and local literature preservation project, New York. Cornell University thesis.
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| 主题: | |
| 格式: | Thesis Monograph Microform Note that CRL will digitize material from the collection when copyright allows. |