TY  - BOOK
T1  - Geography from the air
A1  - Walker, Frank 1914-
LA  - English
PP  - London
PB  - MEthuen
YR  - 1953
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217601445793
OP  - 111
CN  - G 142 W34
KW  - Geography, Aerial.
ER  -