Crawford, R. D.  1873- <br/><br/>
Geology and ore deposits of the Gold brick district, Colorado, 
by R. D. Crawford and P. G. Worcester. 
 - Denver, Colo.,  Eames bros., state printers,  1916. 
 - 116 p.  illus., IX pl. (part fold., incl. maps) plans, diagrs.  24 cm. 
<br/><br/> Maps and 1 plan in pocket. 
<br/><br/><label>LCCN: </label>gs 18000076  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Colorado.<br/>Mines and mineral resources--Colorado.
<br/><br/><label>LC Class. No.: </label>TN24.C6  / C8 no. 10