Mineral concession rules 

 -  1960 
<br/><br/><label>Standard No.: </label>90,603 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GEOGRAPHY
<br/><br/><label>Dewey Class. No.: </label>U671:SZ2qN60, K0 (UD)