An edition of Rapid excavation--problems and progress (1970)
Rapid excavation--problems and progress
proceedings.
By Tunnel and Shaft Conference Minneapolis 1968.
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Publish Date
1970
Publisher
Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers
Language
eng
Pages
410
Description:
subjects: Boring machinery, Congresses, Shaft sinking, Tunneling