Proceedings 1987 Rapid Excavation and Tunneling Conference, New Orleans, Louisiana, June 14-18, 1987
| निगमित लेखकों: | , , |
|---|---|
| स्वरूप: | पुस्तक |
| भाषा: | English |
| प्रकाशित: |
Littleton, Colo.
Society of Mining Engineers
c1987.
|
| विषय: |


