COLTON, Roger B. <br/><br/>
Geology of the otter creek quadrangle Montana / 
by Roger B. Colton. 
 -- Washington :   United States Government Printing Office,   1962 
 - P. 237-288 + map. -- 
 (Geological Survey Bulletin  ;  1111-G).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geología<br/>Montana
<br/><br/><label>Universal Decimal Class. No.: </label>55(786)