TY  - GEN
AU  - Whittaker, Barry N.
AU  - Frith, Russell C.
TI  - Tunnelling : : design, stability and construction
SN  - 187070620X
PY  - 1990///
CY  - London
PB  - The Institution of Mining & Metallurgy
KW  - MINES AND MINING-TUNNELLING
ER  -