Annual report. 

 - Delhi  MOP India       
 -  1980 .
<br/><br/><label>Standard No.: </label>88060 
<br/><br/><label>Source: </label> Reports 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minings
<br/><br/><label>Dewey Class. No.: </label>"X9(HZ):94.2s, GD"