Chugh, C.P.
High technology in drilling and exploration - New Delhi Oxford and IBH 1992 - 781 p.
81-204-0712-1
DRILLING
MINES AND MINING-DRILLS
622.233 / C5
High technology in drilling and exploration - New Delhi Oxford and IBH 1992 - 781 p.
81-204-0712-1
DRILLING
MINES AND MINING-DRILLS
622.233 / C5