TY  - BOOK
AU  - Allum,J.A.E.
TI  - Photogeology and regional mapping
T2  - The Commonwealth and international library. Geology division
PY  - 1966///]
CY  - Oxford
PB  - Pergamon Press
KW  - Aerial photography in geology
KW  - Geology
KW  - Maps
ER  -