TY  - BOOK
AU  - 
TI  - DRILLING
SN  - 1566702429
U1  - 622.24 
PY  - 1997///
CY  - 
PB  - Crc Press, Boca Raton
KW  - Boring
N1  - Includes Bibliographical References And Index; Produced By Australian Drilling Industry Training Committee Limited
ER  -