| 000 | 00373nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 220204s9999 xx 000 0 und d | ||
| 082 |
_a631.461.5(213.5) _bAYA |
||
| 100 | _aAYANABA, A | ||
| 245 | 0 | _aBiological nitrogen fixation in farming systems of the tropics. | |
| 260 |
_aChichester _bWiley _c1977 |
||
| 650 | _aNitrogen fixation | ||
| 700 | _aDART, P J | ||
| 942 | _cBK | ||
| 999 |
_c39633 _d39633 |
||