TY  - BOOK
AU  - Proctor, R.V.
AU  - White, T. L.
AU  - Terzaghi, karl
TI  - Rock tunneling with steel supports: with an introduction to tunnel geology
U1  - 625.13 DDC 20
PY  - 1946///
CY  - Ohio
PB  - Youngstown
KW  - Tunneling
KW  - Structural geology
ER  -