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2Published 1977Subjects: “...Tunneling....”
Government Document Book -
3Published 1985Subjects: “...Tunneling Congresses....”
Conference Proceeding Book -
4Published 1872Subjects: “...Tunneling Finance Law and legislation United States....”
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5Published 1872Subjects: “...Tunneling Finance Law and legislation United States....”
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6Published 1982Subjects: “...Tunneling Case studies....”
Government Document Book -
7Published 1982Subjects: “...Tunneling....”
Government Document Book -
8Published 1982Subjects: “...Tunneling....”
Government Document Book -
9Published 1985Subjects: “...Tunneling Technological innovations....”
Government Document Book -
10Published 1982Subjects: “...Tunneling Management....”
Government Document Book -
11Published 1974Subjects: “...Tunneling....”
Book -
12Published 1981Subjects: “...Tunnels United States Design Congresses....”
Government Document Conference Proceeding Book -
13by Sinha, R. S.Subjects: “...Tunneling Equipment and supplies....”
Published 1986
Government Document Book -
14Published 1988Subjects: “...Tunneling United States Handbooks, manuals, etc....”
Government Document Microform Book -
15Published 2007Subjects: “...Tunnels United States Safety measures....”
Text version:
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Government Document Book -
16Published 2017Subjects: “...Tunneling United States History....”
Book -
17Published 1979Subjects: “...Railroad tunnels United States Design and construction....”
Government Document Book -
18by Bennett, Robert D.Subjects: “...Tunnels United States Design....”
Published 1981
Government Document Book -
19
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20Published 2003Subjects: “...Tunneling United States Safety measures....”
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