Mine disasters in India. 

 - Dhanbad  The Author India          1981 
 -  V2 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minings
<br/><br/><label>Dewey Class. No.: </label>X9(HZ:4).2.N7, M1.2