| Tag | Indicator | Content |
|---|---|---|
| 020 | ## | $a0-89118-118-0 |
| 041 | ## | $aEnglish |
| 110 | ## | $aEditors: John Ragland, Rattan Lal |
| 245 | 00 | $aTechnologies for sustainable agriculture in the tropics : proceedings of two international symposia $cEditors: John Ragland, Rattan Lal |
| 260 | ## | $aMadison $bAmerican Society of Agronomy $c1993 |
| 300 | ## | $axix, 313 p. $bfig., table $c24 cm |
| 500 | ## | $aASA Special publication : 56 |
| 650 | 00 | $aSUSTAINABLE AGRICULTURE - Tropics |