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| 008 | 160408b xxu||||| |||| 00| 0 eng d | ||
| 082 |
_a624.19 _bJ768 |
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| 100 | _aJorge, M. | ||
| 245 | 1 | _aRECENT EXPERIENCE IN THE CONSTRUCTION OF TUNNELS AND SHAFTS IN THE CITY OF MEXICO | |
| 260 |
_a _b _c |
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| 300 | _aiv | ||
| 650 | _aTunnels | ||
| 700 | _aAbel Villarreal E. | ||
| 964 | _gCIRC | ||
| 997 | _aA46156 C | ||
| 999 |
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