Foster, Helen L. <br/><br/>
Geology of the mount fairplay area Alaska:  contributions to general geology / 
by  Helen L.  Foster 
 - Washington :  United States Government Printing Office,  1967 
 - Various pagings :  ill. ;  22 cm. 
 - U.S. Geological Survey bulletin ;  1241-B .
<br/><br/>Includes bibliography 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology<br/>Climatic changes
<br/><br/><label>Dewey Class. No.: </label>557.98