TY  - BOOK
AU  - Sandstrom,Gosta E.
TI  - The history of tunnelling: underground workings through the ages 
PY  - 1963///
CY  - London
PB  - Barrie and Rockliff
KW  - Tunneling
KW  - History
KW  - Tunnels
N1  - Includes bibliographical references (p. [415]-417) and index
ER  -