TY  - GEN
AU  - Heywood, Lan
AU  -  Carver, Steve    
AU  -  Raju, Srinivasa    
AU  - Cornelius, Sarah     
TI  - An introduction to geographical information systems
SN  - 8177587846
U1  - 910.285 
PY  - 2006///
CY  - New Delhi
PB  - Dorling Kindersley Pvt Ltd
KW  - GEOGRAPHY AND TRAVEL
ER  -