TY  - BOOK
T1  - Drilling tools and programme management
A1  - Hartley, John S.
LA  - English
PP  - Rotterdam
PB  - A.A. Balkema
YR  - 1997
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217603100890
OP  - 150
CN  - TN 281 H37 1997
SN  - 9054101598
KW  - Drilling and boring.
ER  -