BUREAU OF INDIAN STA <br/><br/>
INDIAN STANDARD GUIDE FOR CORE DRILLING OBSERVATIONS. IS : 5313-1980 

 - 1st rev. ed.  2004 
 - NEW DELHI  BUREAU OF INDIAN STANDARDS. 
 - 10 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  CORE DRILLING OBSERVATIONS
<br/><br/><label>Dewey Class. No.: </label>624  / BUR