| 000 | nam a22 4500 | ||
|---|---|---|---|
| 245 | _aWater resources survey and development plans Chiang Rai province, Thailand : Appendix B agriculture | ||
| 260 |
_a[Switzerland] _bElectro-watt/Motor-Columbus Consulting engineers _c1972 |
||
| 710 | _aElectro-watt/Motor-Columbus Consulting Engineers | ||
| 942 | _c22 | ||
| 999 |
_c4920 _d4920 |
||