| 000 | nam a22 4500 | ||
|---|---|---|---|
| 245 | _aProceedings of the ninth scesion of the regional conference on water resources development in Asia and the Far East : water resource series No.40 | ||
| 260 |
_aNew York _bUnited Nations _c1971 |
||
| 710 | _aEconmic Commission for Asia and the Far East | ||
| 942 | _c22 | ||
| 999 |
_c4879 _d4879 |
||