| 000 | 00882nam a22002297a 4500 | ||
|---|---|---|---|
| 999 |
_c11670 _d11670 |
||
| 001 | GENERAL-006767 | ||
| 003 | EC-OLADE-CDD | ||
| 005 | 20161114171050.0 | ||
| 008 | 160705b xxu||||| |||| 00| 0 spa d | ||
| 040 |
_aOLADE-CDD _cOLADE-CDD |
||
| 041 | _aeng | ||
| 082 |
_a333.91 _bU566 |
||
| 110 | _aUnited Nations Environmental Programme (UNEP) | ||
| 245 | _aGround water: a threatened resource | ||
| 260 |
_aNairobi: _bUNEP, _c1996 |
||
| 300 |
_a36 p. _bilustraciones. |
||
| 504 | _a04682 | ||
| 505 | _aThe hydrogeological cycle. Water in aquifers. How groundwater flows. Early uses of groundwater. Where groundwater is used. The advantages of groundwater. Groundwater quality. Inadequate control. The pollution of groundwater. Protecting groundwater resources. Assessing groundwater resources. | ||
| 650 | _aAgua | ||
| 650 | _aContaminación del Agua | ||
| 942 |
_2ddc _cMON |
||