Karanam, Umamaheshwar Rao <br/><br/>
Principles of Rock Drilling 

 - NEW DELHI  Oxford & IBH Publishing  1998 
 - 265p.,24X15Cms. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Percussive Drilling<br/>Rock Drilling
<br/><br/><label>Dewey Class. No.: </label>622.23 K18P