TY  - BOOK
AU  - Maurer, William C.
TI  - NOVEL DRILLING TECHNIQUES
U1  - 622.24 
PY  - 1968///
CY  - Oxford
PB  - Pergamon Press
KW  - Boring
N1  - Includes Bibliography; Issued Under The Auspices Of The International Journal Of Rock Mechanics And Mining Sciences
ER  -