Gunther, Charles Godfrey,  1880-1929, <br/><br/>
The examination of prospects :  A mining geology / 
By c. godfrey gunther rev. by russell c. fleming. 
 - 2 
 - 220 páginas 
 - A.I.M.E. series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Prospección<br/>Geología económica
<br/><br/><label>LC Class. No.: </label>TN260  / G851932