Douglas, James Archibald <br/><br/>
Untechnical addresses on technical subjects 

 - New York  John Wiley &amp; Sons  1904 
 - 84 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>DISCURSOS<br/>MINERIA
<br/><br/><label>Universal Decimal Class. No.: </label>A/620.07/D94