| 000 | nam a22 4500 | ||
|---|---|---|---|
| 082 |
_aRID.631.7 _bR6p _d1978 |
||
| 100 | _aRoyal Irrigation Department | ||
| 245 |
_aPhitsanulok Irrigation Project : A feasibility study of the navigation lock _bReport no.19 |
||
| 260 |
_aBangkok _bRoyal Irrigation Department _c1978 |
||
| 942 | _c12 | ||
| 999 |
_c2568 _d2568 |
||