| 000 | 004500000a22001570004500 | ||
|---|---|---|---|
| 020 | _a0-471-994995 | ||
| 060 | _a105 | ||
| 082 | _a631.580913 AYA | ||
| 100 | _aAyanaba, A | ||
| 245 | _aBiological NItrogen fixation in farming systems of the tropics | ||
| 260 | _aChichestor, John Wiley & Sons | ||
| 260 | _c1977 | ||
| 300 | _a377 | ||
| 650 | _aNitrogen fixation / agriculture- tropics- congresses / Nitrogen fixation congresses | ||
| 942 | _cBK | ||
| 999 |
_c206162 _d206162 |
||