,  . <br/><br/>
12th World mining congress /  
by. 
 - 1st.Edn. /  
 - New Delhi :   World Mining Congress ,   1985 
 - vi,176p :  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth Science
<br/><br/><label>Dewey Class. No.: </label>HXp1,N84  / M5