Ray, Richard G. <br/><br/>
Aerial photographs in geologic interpretation and mapping 
/por Richard G. Ray 
 - Washington :  Geological Survey,  1965 [c.1960] 
 - 230 p. :  ilus. 
 - Professional paper  ; 373 .
 - Professional paper  ; 373 .
<br/><br/><label>LCCN: </label>45071 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fotografía aérea.<br/>Fotointerpretación.<br/>Geología--Mapas.
<br/><br/><label>Dewey Class. No.: </label>526.982  / R3