Butler, G. M.  1881- <br/><br/>
Some facts about ore deposits, 
by G. Montague Butler. 
 - Tucson, Ariz.,  University of Arizona  [1935] 
 - 99 p.  23 cm. 
 - Arizona. Bureau of Mines. Bulletin  no. 139; Geology series, no. 8 .
 - University of Arizona.  State Bureau of Mines.  Bulletin ;  no. 139. University of Arizona.  State Bureau of Mines.  Geology series ;  no. 8. .
 - Bulletin (University of Arizona) ;  v. 6, no. 6. .
<br/><br/>Selected bibliography: p. 99. 
<br/><br/><label>LCCN: </label>gs 35000278  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ore deposits.
<br/><br/><label>LC Class. No.: </label>TN24.A6  / A35 no. 139 
<br/><br/><label>Gov. Doc. Class. No.: </label>MN 1.3:B 85/139