000 | nam a22 4500 | ||
---|---|---|---|
020 | _a | ||
245 | _aTowards an environmentally sound and sustainable development of water resources M Asia the pacific : water resources No 71 | ||
260 |
_aNew York _bUnited Nations _c1992 |
||
710 | _aEconomic and Social Commission for Asia and the Pacific | ||
942 | _c22 | ||
999 |
_c6718 _d6718 |