The law of diminishing returns /
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| Main Author: | |
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| Other Authors: | |
| Format: | Kitap |
| Language: | English |
| Published: |
New York :
World Book Company,
1924.
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| Series: |
New-World Agriculture Series
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| Subjects: |
| Physical Description: | 178p. : tab., fig. |
|---|---|
| Bibliography: | Bib. Quoted at foot |