| 000 | 00338nam a2200121Ia 4500 | ||
|---|---|---|---|
| 100 | _aWorld Health Organization | ||
| 020 | _a92-9021-001-X | ||
| 942 | _cBK | ||
| 245 |
_aWastewater stabilization ponds _bprinciples of planning practice |
||
| 260 |
_aWorld Health Organization, Alexandria _c1987 |
||
| 082 | _a623.168 WHO | ||
| 300 | _axvi,138 | ||
| 999 |
_c25143 _d25143 |
||