| 000 | nam a22 4500 | ||
|---|---|---|---|
| 020 | _a | ||
| 245 | _aGround water pollution : technology, economics and management | ||
| 260 |
_aRome _bFood and Agriculture Organiztion of the United Nations _c1979 |
||
| 710 | _aFood and Agriculture Organization of the United Nations | ||
| 942 | _c22 | ||
| 999 |
_c6726 _d6726 |
||