| 000 | 00351nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 140317s9999 xx 000 0 und d | ||
| 082 | _a551.48 | ||
| 100 | _aUnesco. | ||
| 245 | _aAquifer contamination and protections. Project 8.3 | ||
| 260 |
_aRome _bUNESCO _c1980 |
||
| 300 | _a440 | ||
| 650 | _aHydrology | ||
| 653 | _aHydrology | ||
| 942 |
_2ddc _cBK |
||
| 999 |
_c9926 _d9926 |
||