UNITED STATES DEPATMENT OF THE INTERIOR <br/><br/>
MINERALS YEARBOOK 1940 

 - 0 
 - WASHINGTON-USA  U.S.GOVERNM.PRINT.OFFICE  1940 
 - 1514 pag.  24 cm 
 - 0  0 .
<br/><br/>ESTADISTICA-PRODUCCION MINERALES/NO METALES 
<br/><br/><label>Subjects--Topical Terms: </label><br/>OBRAS GENERALES
<br/><br/><label>Dewey Class. No.: </label>050.549  / U61