Proceedings 1987 Rapid Excavation and Tunneling Conference, New Orleans, Louisiana, June 14-18, 1987
| Korporace: | , , |
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| Médium: | Kniha |
| Jazyk: | angličtina |
| Vydáno: |
Littleton, Colo.
Society of Mining Engineers
c1987.
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| Témata: |


