TY  - BOOK
AU  - Maurer,William C.
TI  - Advanced drilling techniques
SN  - 0878141170
AV  - TA 745 .M38 1980
U1  - 621.9/52 19
PY  - 1980///
CY  - Tulsa, OK
PB  - Petroleum Pub. Co.
KW  - Rock-drills
KW  - Boring
N1  - Includes bibliographies and indexes
ER  -