George, Russell D.,  1866- <br/><br/>
Common minerals and rocks,  their occurrence and uses, 
by R. D. George. 
 - Denver, Colo.,  Eames bros., state printers,  1917. 
 - 463 p.  illus., fold. map, diagrs.  24 cm. 
 - Colorado, Geological Survey, Bulletin 12 .
<br/><br/><label>LCCN: </label>gs 18000077  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogy.<br/>Petrology.
<br/><br/><label>LC Class. No.: </label>QE91  / .A4 no. 12