Report 

 - Geneva  ILO         1947 
 - "iv, 174p."  cm. 
<br/><br/><label>Standard No.: </label>88821 
<br/><br/><label>Source: </label> Reports 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minings
<br/><br/><label>Dewey Class. No.: </label>"X9(HZ551):9.1.N45t, H7/UN"