Karanam, U. M. Rao <br/><br/>
Principles of rock drilling / 
U. M. Rao Karanam [and] B. Misra 
 - Netherlands :  A. A. Balkema,  1998 
 - vii, 265 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>905410788X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Boring<br/>Rock--drills