| 000 | 00320nam a22001097a 4500 | ||
|---|---|---|---|
| 999 |
_c331508 _d331508 |
||
| 020 | _a8170031338 | ||
| 082 | _bMAN | ||
| 100 | _aLudwig,F Harvey et al. | ||
| 245 |
_aManual of environmental technology in developing countries _cHarvey F. Ludwig et al. |
||
| 260 |
_aNew Delhi: _bSouth Asian publishers, _c1991 |
||
| 942 | _cBK | ||