CARLSTON, Charles W. <br/><br/>
Character and history of the Upper Ohio river Valley / 
By Charles W. Carlston. 
 -- Washington :   United States Government Printing,   1962 
 - 19 p. -- 
 (Geological Survey Bulletin  ;  1141-I).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geología<br/>Ohio
<br/><br/><label>Universal Decimal Class. No.: </label>55(771)