HAIL, William J. <br/><br/>
Geology of northwestern North Park, Colorado / 
by William J. Hail. 
 -- Washington :   United States Government Printing Office,   1965 
 - 133 p. -- 
 (Geological Survey Bulletin  ; 1188).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Colorado<br/>Geología
<br/><br/><label>Universal Decimal Class. No.: </label>55(788)