Shree Mahakali coal mines reports and accounts for the 12th Half-year ended 30th June 1949 

 - Caltta:  Shree Mahakali coal mines         1949 
<br/><br/> 12th Report (9p.).; 13th Report (11p.). 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X8 (F551).275t.N49