Proceedings 1987 Rapid Excavation and Tunneling Conference, New Orleans, Louisiana, June 14-18, 1987
| Údair chorparáideacha: | , , |
|---|---|
| Formáid: | LEABHAR |
| Teanga: | English |
| Foilsithe / Cruthaithe: |
Littleton, Colo.
Society of Mining Engineers
c1987.
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| Ábhair: |


