| 000 | 00467nam a22001457a 4500 | ||
|---|---|---|---|
| 008 | 230612b |||||||| |||| 00| 0 eng d | ||
| 020 | _a9241544716 | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 080 |
_a628.1(1-21) _bN4 |
||
| 245 |
_aOperation and maintainence of urban water supply and sanitation systems: _bA guide for managers _c/ WHO |
||
| 260 |
_aGeneva: _bWHO, _c1994 |
||
| 300 | _aix, 102p. | ||
| 650 | _aScience | ||
| 942 |
_2udc _cBK |
||
| 999 |
_c41859 _d41859 |
||