| 000 | 00320nam a22001217a 4500 | ||
|---|---|---|---|
| 999 |
_c2604 _d2604 |
||
| 020 | _a0074517082 | ||
| 082 | _a628 | ||
| 100 | _aA Kamala & D L Kanth Rao | ||
| 245 | _aEnvironmental engineering water supply sanitary engineering and pollution | ||
| 260 |
_aNew Delhi _bTata McGraw Hill _c2001 |
||
| 300 | _a271 | ||
| 942 | _cBK | ||