Principles for progress in world agriculture : presented at the 33rd annual meeting of the National Agricultural Chemicals Association, White Sulphur Springs, West Virginia / J. George Harrar
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| Place / Publishing House: | New York, NY : Rockefeller Foundation, 1966 |
| Year of Publication: | 1966 |
| Language: | English |
| Subjects: | |
| Physical Description: | 16 S. |
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