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|---|---|---|---|
| 008 | 170101s2017 xx 000 0 und d | ||
| 082 | _aSOILS 631.847 S99M | ||
| 245 | 0 | _aManagement of biological nitrogen fixation --agricultural systems | |
| 650 | _aNITROGEN -- FIXATION -- CONGRESSES | ||
| 653 | _aNITROGEN -- FIXATION -- CONGRESSES | ||
| 942 |
_2ddc _cB |
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| 999 |
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