TY  - BOOK
AU  - Townsend J. R. G.
TI  - Terrain analysis and remote sensing
SN  - 0045510369
AV  - G70.4T47 1981 
PY  - 1981///
CY  - London 
PB  - Gorge allen and unwin ltd 
KW  - Terrain analysis
KW  - Natural resources
KW  - Remote sensing
ER  -