Brock, Gerald Clement,  1911- <br/><br/>
Image evaluation for aerial photography :  an appraisal of current techniques / 
by G. C. Brock 
 - London :  Focal P.,  c1970 
 - 258 p., 3 plates. :  ill. ;  26 cm. 
 - The Focal library .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> PND 105.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photographic optics<br/>Photographic interpretation<br/>Aerial photography
<br/><br/><label>Dewey Class. No.: </label>778.35