Fitzhugh, Edward F. <br/><br/>
Treasures in the earth. 

 - Idaho :  The Caxton Printers,  1937. 
 - 130 p. :  il. ;  23 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minería<br/>Minerales
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>622