TY  - BOOK
AU  - Brock,Gerald Clement
TI  - Image evaluation for aerial photography: an appraisal of current techniques 
U1  - 778.35 
PY  - 1970///
CY  - London
PB  - Focal P.
KW  - Photographic optics
KW  - Photographic interpretation
KW  - Aerial photography
N1  - Includes index
ER  -