Tunneling technology: its past and present
By: by Thomas M. Nasiatka.
Series: United States. Bureau of Mines. Information circular ;; 8375; Information circular (United States. Bureau of Mines) ;; 8375.
Publisher: U.S. Dept. of the Interior, Bureau of Mines; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1968
Place of publication: [Washington]
Language: eng
Number of pages: 12
Subjects: Tunneling -- History.