| 000 | 00392nam a22001097a 4500 | ||
|---|---|---|---|
| 020 | _a0821312316 | ||
| 082 |
_a627.5206 _bPLA.M9 |
||
| 245 |
_aPlanning the management, operation and maintenance of irrigation and drainge systems; _cWorld Bank international commission on irrigation and drainge. |
||
| 260 |
_aWashington, D.C: _bWorld Bank, _c1989. |
||
| 300 |
_a150 p. _bill. |
||
| 942 |
_2ddc _cUN&WB |
||
| 999 |
_c721631 _d721631 |
||