Sims, P. K.  1918- <br/><br/>
Economic geology of the Central City District, Gilpin County, Colorado / 
by Paul K. Sims, A. A. Drake, Jr., and E. W. Tooker. 
 - Washington :  U.S. Govt. Print. Off.,  1963. 
 - x, 231 p. :  ill., maps (part col.) diagrs., tables and portfolio (fold. maps (part col.)) ;  29 cm. 
<br/><br/> "Prepared on behalf of the U. S. Atomic Energy Commission." 
<br/><br/>Bibliography : p. 226-228. 
<br/><br/><label>LCCN: </label>gs 63000299  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Economic--Colorado--Central City District<br/>Ore deposits--Colorado--Central City District.<br/>Mines and mineral resources--Colorado--Central City District
<br/><br/><label>LC Class. No.: </label>TN24.C6  / S48 no. 359 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.16:359/