A descriptive catalog of selected aerial photographs of geologic features in areas outside the United States  [slide] / 
by Charles S. Denny...[et al.] 
 - Washington :  United States Government Printing Office,  1969 
 - 238 slides :  col., ;  5 X 5 cm. +  1 book. 
 - Geological Survey Proffesional Paper [slide] ;  591 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aerial photography in geology--Catalog