| 000 | nam a22 4500 | ||
|---|---|---|---|
| 110 | _a | ||
| 245 | _aInternational symposium tunnelling for water resources and power projects | ||
| 260 |
_aRotterdam _bA.A. Balkema _c1990 |
||
| 710 | _aInternational Symposium Tunnelling for Water Resources and Power Project | ||
| 942 | _c22 | ||
| 999 |
_c5052 _d5052 |
||