CAMPBELL, Arthur B. <br/><br/>
Geology and mineral deposits of the St. Regis-Superior area mineral county, Montana / 
by Arthur B. Campbell. 
 -- Washington :   United States Government Printing Office,   1960 
 - P. 545-612 + map. -- 
 (Geological Survey Bulletin  ;  1082-I).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Depósitos de minerales<br/>Montana
<br/><br/><label>Universal Decimal Class. No.: </label>553(786)