TY  - BOOK
AU  - Brown,R.Allen
TI  - Castles from the air
SN  - 0521329329
U1  - DA/660 
PY  - 1989///
CY  - New York
PB  - Cambridge University Press
KW  - Aerial photography in archaeology -- Great Britain.
KW  - Castles -- Great Britain.
KW  - Great Britain -- Aerial photographs.
ER  -