KARANAM,U.M.R
PRINCIPLES OF ROCK DRILLING - NEW DELHI Oxford & IBH Publishing 1998 - 265p.,24X15Cms.
81-204-1275-3
622.23 K18
PRINCIPLES OF ROCK DRILLING - NEW DELHI Oxford & IBH Publishing 1998 - 265p.,24X15Cms.
81-204-1275-3
622.23 K18