Ketchum, Milo S. <br/><br/>
The design of mine structures. 

 - New York :  McGraw-Hill,  1912. 
 - 459 p. :  il. ;  23 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minería<br/>Mina
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>622.006