TY  - BOOK
ED  - The Petroleum Engineer
TI  - Fundamentals of rotary drilling
AV  - TN871.2 .M563 1981
U1  - 622.23 
PY  - 1981///
CY  - Dallas, Texas
PB  - Energy Publications
KW  - Oil well drilling
KW  - Oil well drilling rigs
N2  - This explains the rotary drilling system, a professional and practical training guide to its equipment, procedures, and technology
ER  -