A descriptive catalog of selected aerial photographs of geologic features in the United States / 
by Charles S. Denny...[et al.]. 
 -- Washington :   United States Government Printing Office,   1968 
 - 79 p., [28] h. de lam. -- 
 (Geological Survey Professional Paper  ; 590).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Estados Unidos<br/>Geología
<br/><br/><label>Universal Decimal Class. No.: </label>55(78)