Statistical supplement to the annual report 

 -  1972 
 - 78p.  cm. 
 -  1972-73 .
<br/><br/><label>Standard No.: </label>88024 
<br/><br/><label>Source: </label> Reports 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minings
<br/><br/><label>Dewey Class. No.: </label>"X9(HZ).82s, L3/GD"