TY  - BOOK
AU  - Dean,F.E.
TI  - Tunnels and tunnelling
T2  - The Mechanical age library
U1  - 624.193 
PY  - 1962///]
CY  - London
PB  - F. Muller
KW  - MCE
KW  - Tunneling
KW  - Tunnels
N1  - Stamped on t.p.: Distributed by Sportshelf, New Rochelle, N.Y; 0; 0; 0; 624_193000000000000_DEA
ER  -