Walker, James W. <br/><br/>
Low attitutude large scale reconnaissance  a method of obtaining high resolution vertical photographs for small areas 
James W. Walker 
 - Colorado  Interagency Archaeological Services  1993 
 - viii, 127p.  ill.  30cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photography
<br/><br/><label>Dewey Class. No.: </label>778.35  / WAL