Ray, Louis L.  1909-1975 <br/><br/>
Geomorphology and Quaternary geology of the Owensboro quadrangle Indiana and Kentucky / 
by Louis L. Ray. 
 -- Washington :   United States Government Printing Office,   1965 
 - 72 p. + map. -- 
 (Geological Survey Professional Paper  ; 488).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cuaternario<br/>Geomorfología<br/>Indiana<br/>Kentucky
<br/><br/><label>Universal Decimal Class. No.: </label>551.4(769+772) ; 551.79(769+772)