| Tag | Indicator | Content |
|---|---|---|
| 020 | ## | $a0 471 99499 5 |
| 041 | ## | $aEnglish |
| 082 | ## | $a572.545 |
| 110 | ## | $a[Edited by] A. Ayanaba, P. J. Dart |
| 245 | 00 | $aBIOLOGICAL nitrogen fixation in farming systems of the tropics $c[Edited by] A. Ayanaba, P. J. Dart |
| 260 | ## | $aChichester $bJohn Wiley $c1977 |
| 300 | ## | $axi, 377 p. $bfig., table $c24 cm |
| 500 | ## | $aIncludes index. |
| 650 | 00 | $aNITROGEN FIXATION, AGRICULTURE |