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_aBD-DhBPA _cBD-DhBPA |
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_a631 _bYAM 1962 |
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| 100 | 1 |
_aYang, Wei, _d1907- _95507 |
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| 245 | 1 | 0 |
_aMethods of farm management investigations for improving farm productivity / _cWei Yang. |
| 260 |
_aRome : _bFood and Agriculture Organization of the United Nations, _c1962. |
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| 300 |
_aix, 228 p. : _bdiagrs., tables. ; _c23 cm. |
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| 490 | 1 |
_aFAO agricultural development paper, _vno. 64 |
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| 504 | _aBibliography: p. 225-228. | ||
| 590 | _aNewaz | ||
| 650 | 0 |
_aFarm management _xResearch. _950620 |
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_aFAO agricultural development paper ; _vno. 64. _911869 |
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