TY  - BOOK
AU  - Chugh C.P
TI  - Diamond Drilling
SN  - 0000015225
U1  - 621.9 
PY  - 1971///
CY  - New Delhi
PB  - Oxford I B H
KW  - Diamond  Drilling
KW  - Foun,WP Tech,NC M/c,Mill,Drill,Grin, M/c
ER  -