| 000 | 00430nam a2200109Ia 4500 | ||
|---|---|---|---|
| 008 | 160509s9999 xx 000 0 und d | ||
| 100 | _aWorld Health Organization | ||
| 245 | _aOperation and Maintenance of Urban Water Supply and Sanitation Systems : A Guide for Managers : 1994World Health Organiz | ||
| 260 |
_bWorld Health Organization _c1994 |
||
| 300 | _a102p. | ||
| 650 | _aOperation and Maintenance of Urban Water Supply and Sani | ||
| 999 |
_c10874 _d10874 |
||