| 000 | 00350nam a22001457a 4500 | ||
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| 003 | OSt | ||
| 020 | _a9788121915472 | ||
| 082 | _a628 DUG | ||
| 100 | _aDuggal K N | ||
| 245 | _aElements of Environmental Engineering | ||
| 250 | _a1 | ||
| 440 | _aElements of Environmental Engineering | ||
| 650 | _aEnvironmental Engineering | ||
| 942 |
_2ddc _cBK _020 |
||
| 999 |
_c825198 _d825198 |
||