| 000 | 00351nam a2200133Ia 4500 | ||
|---|---|---|---|
| 999 |
_c23926 _d23926 |
||
| 082 |
_a631.422 _bPOR/SY |
||
| 100 | _aPortch, Sam | ||
| 245 | _aSystematic Approach to Soil Fertility Evaluation and Improvement | ||
| 260 |
_aChina _bModern Agriculture and Fertilizers |
||
| 300 | _a62 | ||
| 546 | _aEnglish | ||
| 700 | _aHunter,Arvel | ||
| 942 |
_2ddc _cREP |
||