TY  - BOOK
AU  - BOYES, R.G.H.
TI  - Structural and cut-off diaphragam walls
U1  - 624.152 B75S 
PY  - 1975///
PB  - London
KW  - DRILLING AND BORING
KW  - EXCARATING MACHINERY
KW  - EXCARATION
ER  -